<p>JB when we fly dont follow Irish advise...spend extra money for avgas ;-)<br>
Just kidding Steve</p>
<p>Steven Donegan <steve@donegan.org> wrote:</p>
<p>>Agreed that rich is better than lean :-) So if you live at or near sea level tune to the hilt for there and you should be good to go at Ely. BTW - at higher altitudes cylinder pressures on a NA engine drop - so buying nasty expensive race gas in Ely may not be worth it :-)<br>
><br>
><br>
> <br>
>____________<br>
>Steven Donegan<br>
>SSCC/NORC Life Member, Car #86<br>
>www.sscc.us<br>
><br>
><br>
><br>
>________________________________<br>
> From: John Bentley <gndplne@yahoo.com><br>
>To: Steven Donegan <steve@donegan.org>; Mad Dog Antenucci <teampantera@yahoo.com>; Asa Jay Laughton <asajay@asajay.com>; "tpr@teampanteraracing.com" <tpr@teampanteraracing.com> <br>
>Sent: Tuesday, January 7, 2014 12:15 PM<br>
>Subject: Re: [TPR] More follow up from Chuck Nyutten<br>
> <br>
><br>
><br>
>agreed, pyrometer also a good thing, however, a normally-aspirated v-8 at 5500 rpm is a totally different animal from a horizontally opposed force-fed aluminum flat 6 at 2400 RPM. Where to run the mixture in an aircraft engine is another loooong topic. 50 ROP or 50 LOP? Ask 10 people and you'll get 11 answers. I always run the turbo-charged 520 cubic inch engine in my plane ROP and depending on other considerations, maybe even 100 ROP. I let EGT and CHT guide my decision.<br>
><br>
>Since both Asa and I live closer to sea-level and race at 6 or 7,000 feet, I still say get it dialed in for proper mixture for lower altitude and then when you get to Ely and run 5 or 6,000 RPM, you will have a rich mixture and that is a good thing. Lean at high RPM=real bad. I'm sure very few people run a knock sensor on a Cleveland and detonation at lean mixtures at high rpm is difficult to hear. My 2 cents is to run rich for endurance racing at high RPM and run a higher octane fuel than normal. If you have the time and money to dyno at Ely as well and then change jets and power valve in Ely that's a good thing. In the 13 years I've been running in Ely, this method has worked well for me.<br>
><br>
>Your Mileage May Vary, this is not legal advise, some assembly required, batteries not included.<br>
><br>
>JB<br>
><br>
><br>
>________________________________<br>
> From: Steven Donegan <steve@donegan.org><br>
>To: John Bentley <gndplne@yahoo.com>; Mad Dog Antenucci <teampantera@yahoo.com>; Asa Jay Laughton <asajay@asajay.com>; "tpr@teampanteraracing.com" <tpr@teampanteraracing.com> <br>
>Sent: Tuesday, January 7, 2014 9:33 AM<br>
>Subject: Re: [TPR] More follow up from Chuck Nyutten<br>
> <br>
><br>
><br>
>I suggest, besides the oxy sensor bung, you also do a run with a pyrometer in that same bung - in small turbo airplanes the usual thing is to lean out the mixture until you hit peak temperature then back it off a bit - the same applies to automotive engines :-)<br>
><br>
>Given a carb, and altitude differences, if you are perfect at sea level you likely will be rich at Ely - it might be cool to actually see how much difference there is and/or re-tune at Ely and again at R Place for the run back to Vegas...<br>
><br>
> <br>
>____________<br>
>Steven Donegan<br>
>SSCC/NORC Life Member, Car #86<br>
>www.sscc.us<br>
><br>
><br>
><br>
>________________________________<br>
> From: John Bentley <gndplne@yahoo.com><br>
>To: Mad Dog Antenucci <teampantera@yahoo.com>; Asa Jay Laughton <asajay@asajay.com>; "tpr@teampanteraracing.com" <tpr@teampanteraracing.com> <br>
>Sent: Tuesday, January 7, 2014 9:18 AM<br>
>Subject: Re: [TPR] More follow up from Chuck Nyutten<br>
> <br>
><br>
><br>
>My carb is a Holley 0-4778. I have changed the jets based on dyno runs with an oxygen sensor. The carb as-built runs very rich. I also changed the power valve based on engine vacuum. I would caution you on making any seat-of-the-pants mixture adjustments. Just have a bung put in at least one of your headers and measure it. A little rich is always better than a little lean, especially at high rpm.<br>
><br>
>I have had it above 150 MPH many times but always ran out of balls before running out of<br>
> carb. :) My car desperately needs a front air dam since above 150 it gets very light in the front. I have the air dam, just never got around to putting it on.<br>
><br>
>The 0-4778 is a 700 CFM double-pumper. Works well around town and also at Silver<br>
> State. <br>
> Its on a Blue Thunder low-profile dual plane manifold on 4V closed-chamber iron heads.<br>
><br>
>I agree with Chuck, I would not put a vacuum-secondary carb on my Pantera.<br>
><br>
>Grumpy<br>
><br>
><br>
><br>
><br>
>________________________________<br>
> From: Mad Dog Antenucci <teampantera@yahoo.com><br>
>To: Asa Jay Laughton <asajay@asajay.com>; "tpr@teampanteraracing.com" <tpr@teampanteraracing.com> <br>
>Sent: Tuesday, January 7, 2014 7:31 AM<br>
>Subject: Re: [TPR] More follow up from Chuck Nyutten<br>
> <br>
><br>
><br>
>Bud can do 130?<br>
>At Silver State? ;-)<br>
><br>
>Look I can do 185 at sealevel and Bud is somewhere south of sealevel! HAHA<br>
>Here's the guys to ask....what is JB running for a carburation...he has had several runs between 130-135 AVERAGE which meant he was hitting 150-160 in straights....<br>
><br>
>Note to Grumpy: Chime in here with your wisdom ;-)<br>
><br>
><br>
><br>
>On Monday, January 6, 2014 10:05 PM, Asa Jay Laughton <asajay@asajay.com> wrote:<br>
> <br>
> <br>
>Hi gang,<br>
><br>
>As I continue my edumacation bout cars and stuff.... I wrote Chuck<br>
> again asking about the option of a vacuum secondary carb instead of<br>
> a double-pumper as he originally recommended. He was candid in his<br>
> response and I take it with the same grain of salt I try most things<br>
> with. You can read the trail below.<br>
><br>
>I also talked with our friend Bud Hower, who sent photos and specs<br>
> of his carb. His Holley is nearly identical to mine, though it may<br>
> not be an "emissions" model, and he gets 130 top end without a<br>
> problem and maybe more. That may simply mean mine being an<br>
> emissions carb might be channeled and jet differently... for fuel<br>
> economy and not top end.<br>
><br>
>Note, I'm not spending any more yet, I'm still investigating.<br>
>Asa Jay<br>
><br>
>-------- Original Message -------- <br>
>Date: Mon, 6 Jan 2014 14:45:10 -0600 <br>
>From: <form@chucknuytten.com> <br>
>To: 'Asa Jay Laughton' <asajay@asajay.com> <br>
><br>
> <br>
>If you are going to buy a new carburetor, I would not recommend a vacuum secondary carburetor. I use double pumper carburetors on many vehicles that claim they use them on performance street vehicles. I stay with my original recommendation of a 750-2003 carburetor $833.00. <br>
>Vacuum carburetors tend to drop back on performance on the top end and that is exactly the condition you are describing. A vacuum carburetor is a good choice if you only want fuel economy but you are not going to be happy with that carburetor when you want to go racing. <br>
> <br>
>From:Asa Jay Laughton [mailto:asajay@asajay.com] <br>
>Sent: Friday, December 27, 2013 1:33 PM<br>
>To: form@chucknuytten.com<br>
>Subject: Re: Friend or Fellow Racer<br>
> <br>
>Thank you for the recommendation. Based on the fact I don't race the car all the time and in fact drive it more as an around-town car until open road race season, I would think a vacuum secondary would be better for fuel economy. Presently I get nearly 22 MPG on the highway, which is nice; when racing, it doesn't really matter as long as enough fuel is being metered to the engine. However, during the SSCC this year I felt the carb was leaning out and perhaps even starving the engine at high rpm, which is why I'm investigating a new carb.<br>
><br>
>Do you work with vacuum secondary carbs and what is your opinion<br>
> of them?<br>
>Thank you,<br>
>Asa Jay<br>
><br>
><br>
>Asa Jay Laughton, MSgt, USAFR, Retired<br>
>& Shelley Marie<br>
>Spokane, WA<br>
>****************************** <br>
>http://www.racingagainstautism.com<br>
>http://www.teampanteraracing.com<br>
>http://facebook.com/racingagainstautism<br>
><br>
>On 12/9/2013 8:51 AM, form@chucknuytten.com wrote: <br>
>If you want performance, I have a 750-2003 double pump carburetor, four corner idle which would work very well for your situation. $833.00 I looked up the carburetor you presently are running and according to the Holley info I would not recommend putting any more money into that core. Your present carburetor is an ok core for general use but not the best core for performance.<br>
><br>
>_______________________________________________<br>
>TPR mailing list<br>
>TPR@teampanteraracing.com<br>
>http://teampanteraracing.com/mailman/listinfo/tpr_teampanteraracing.com<br>
><br>
><br>
><br>
><br>
>_______________________________________________<br>
>TPR mailing list<br>
>TPR@teampanteraracing.com<br>
>http://teampanteraracing.com/mailman/listinfo/tpr_teampanteraracing.com<br>
><br>
><br>
><br>
>_______________________________________________<br>
>TPR mailing list<br>
>TPR@teampanteraracing.com<br>
>http://teampanteraracing.com/mailman/listinfo/tpr_teampanteraracing.com</p>
<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:12pt">Agreed that rich is better than lean :-) So if you live at or near sea level tune to the hilt for there and you should be good to go at Ely. BTW - at higher altitudes cylinder pressures on a NA engine drop - so buying nasty expensive race gas in Ely may not be worth it :-)<br><div><span></span></div><div> </div><div>____________<br>Steven Donegan<br>SSCC/NORC Life Member, Car #86<br>www.sscc.us<br></div><div><br></div> <div style="font-family: times new roman, new york, times, serif; font-size: 12pt;"> <div style="font-family: times new roman, new york, times, serif; font-size: 12pt;"> <div dir="ltr"> <hr size="1"> <font face="Arial" size="2"> <b><span style="font-weight:bold;">From:</span></b> John Bentley <gndplne@yahoo.com><br> <b><span style="font-weight: bold;">To:</span></b> Steven Donegan
<steve@donegan.org>; Mad Dog Antenucci <teampantera@yahoo.com>; Asa Jay Laughton <asajay@asajay.com>; "tpr@teampanteraracing.com" <tpr@teampanteraracing.com> <br> <b><span style="font-weight: bold;">Sent:</span></b> Tuesday, January 7, 2014 12:15 PM<br> <b><span style="font-weight: bold;">Subject:</span></b> Re: [TPR] More follow up from Chuck Nyutten<br> </font> </div> <div class="y_msg_container"><br><div id="yiv2071020711"><div><div style="color:#000;background-color:#fff;font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:14pt;"><div><span>agreed, pyrometer also a good thing, however, a normally-aspirated v-8 at 5500 rpm is a totally different animal from a horizontally opposed force-fed aluminum flat 6 at 2400 RPM. Where to run the mixture in an aircraft engine is another loooong topic. 50 ROP or 50 LOP? Ask 10 people and you'll get 11 answers. I always run
the turbo-charged 520 cubic inch engine in my plane ROP and depending on other considerations, maybe even 100 ROP. I let EGT and CHT guide my decision.</span></div><div><br></div><div style="color:rgb(0, 0, 0);font-size:19px;font-family:HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif;background-color:transparent;font-style:normal;">Since both Asa and I live closer to sea-level and race at 6 or
7,000 feet, I still say get it dialed in for proper mixture for lower altitude and then when you get to Ely and run 5 or 6,000 RPM, you will have a rich mixture and that is a good thing. Lean at high RPM=real bad. I'm sure very few people run a knock sensor on a Cleveland and detonation at lean mixtures at high rpm is difficult to hear. My 2 cents is to run rich for endurance racing at high RPM and run a higher octane fuel than normal. If you have the time and money to dyno at Ely as well and then change jets and power valve in Ely that's a good thing. In the 13 years I've been running in Ely, this method has worked well for me.</div><div style="color:rgb(0, 0, 0);font-size:19px;font-family:HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif;background-color:transparent;font-style:normal;"><br></div><div style="color:rgb(0, 0, 0);font-size:19px;font-family:HelveticaNeue, 'Helvetica
Neue', Helvetica, Arial, 'Lucida Grande', sans-serif;background-color:transparent;font-style:normal;">Your Mileage May Vary, this is not legal advise, some assembly required, batteries not included.</div><div style="color:rgb(0, 0, 0);font-size:19px;font-family:HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif;background-color:transparent;font-style:normal;"><br></div><div style="color:rgb(0, 0, 0);font-size:19px;font-family:HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif;background-color:transparent;font-style:normal;">JB</div><div style="color:rgb(0, 0, 0);font-size:19px;font-family:HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif;background-color:transparent;font-style:normal;"><br></div> <div style="font-family:HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif;font-size:14pt;"> <div style="font-family:HelveticaNeue, 'Helvetica
Neue', Helvetica, Arial, 'Lucida Grande', sans-serif;font-size:12pt;"> <div dir="ltr"> <hr size="1"> <font face="Arial" size="2"> <b><span style="font-weight:bold;">From:</span></b> Steven Donegan <steve@donegan.org><br> <b><span style="font-weight:bold;">To:</span></b> John Bentley <gndplne@yahoo.com>; Mad Dog Antenucci <teampantera@yahoo.com>; Asa Jay Laughton <asajay@asajay.com>; "tpr@teampanteraracing.com" <tpr@teampanteraracing.com> <br> <b><span style="font-weight:bold;">Sent:</span></b> Tuesday, January 7, 2014 9:33 AM<br> <b><span style="font-weight:bold;">Subject:</span></b> Re: [TPR] More follow up from Chuck Nyutten<br> </font> </div> <div class="yiv2071020711y_msg_container"><br><div id="yiv2071020711"><div><div style="color:rgb(0, 0, 0);background-color:rgb(255, 255, 255);font-family:'times new roman', 'new york', times, serif;font-size:12pt;"><div><span>I suggest,
besides the oxy sensor bung, you also do a run with a pyrometer in that same bung - in small turbo airplanes the usual thing is to lean out the mixture until you hit peak temperature then back it off a bit - the same applies to automotive engines :-)</span></div><div style="color:rgb(0, 0, 0);font-size:16px;font-family:'times new roman', 'new york', times, serif;background-color:transparent;font-style:normal;"><br clear="none"><span></span></div><div style="color:rgb(0, 0, 0);font-size:16px;font-family:'times new roman', 'new york', times, serif;background-color:transparent;font-style:normal;"><span>Given a carb, and altitude differences, if you are perfect at sea level you likely will be rich at Ely - it might be cool to actually see how much difference there is and/or re-tune at Ely and again at R Place for the run
back to Vegas...<br clear="none"></span></div><div> </div><div>____________<br clear="none">Steven Donegan<br clear="none">SSCC/NORC Life Member, Car #86<br clear="none">www.sscc.us<br clear="none"></div><div><br clear="none"></div> <div style="font-family:'times new roman', 'new york', times, serif;font-size:12pt;"> <div style="font-family:'times new roman', 'new york', times, serif;font-size:12pt;"> <div class="yiv2071020711yqt0527755587" id="yiv2071020711yqt93023"><div dir="ltr"> <hr size="1"> <font face="Arial" size="2"> <b><span style="font-weight:bold;">From:</span></b> John Bentley <gndplne@yahoo.com><br clear="none"> <b><span style="font-weight:bold;">To:</span></b> Mad Dog Antenucci <teampantera@yahoo.com>; Asa Jay Laughton <asajay@asajay.com>; "tpr@teampanteraracing.com" <tpr@teampanteraracing.com> <br clear="none"> <b><span style="font-weight:bold;">Sent:</span></b> Tuesday, January 7, 2014 9:18 AM<br
clear="none"> <b><span style="font-weight:bold;">Subject:</span></b> Re: [TPR] More follow up from Chuck Nyutten<br clear="none"> </font> </div> <div class="yiv2071020711y_msg_container"><br clear="none"><div id="yiv2071020711"><div><div style="color:rgb(0, 0, 0);background-color:rgb(255, 255, 255);font-family:HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif;font-size:14pt;">My carb is a Holley 0-4778. I have changed the jets based on dyno runs with an oxygen sensor. The carb as-built runs very rich. I also changed the power valve based on engine vacuum. I would caution you on making any seat-of-the-pants mixture adjustments. Just have a bung put in at least one of your headers and measure it. A little rich is always better than a little lean, especially at high rpm.<br clear="none"><br clear="none">I have had it above 150 MPH many times but always ran out of balls before running out of
carb. :) My car desperately needs a front air dam since above 150 it gets very light in the front. I have the air dam, just never got around to putting it on.<br clear="none"><br clear="none">The 0-4778 is a 700 CFM double-pumper. Works well around town and also at Silver
State.
Its on a Blue Thunder low-profile dual plane manifold on 4V closed-chamber iron heads.<br clear="none"><br clear="none">I agree with Chuck, I would not put a vacuum-secondary carb on my Pantera.<br clear="none"><br clear="none">Grumpy<br clear="none"><div><span><br clear="none"></span></div><div><br clear="none"></div> <div style="font-family:HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif;font-size:14pt;"> <div style="font-family:HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif;font-size:12pt;"> <div dir="ltr"> <hr size="1"> <font face="Arial" size="2"> <b><span style="font-weight:bold;">From:</span></b> Mad Dog Antenucci <teampantera@yahoo.com><br clear="none"> <b><span style="font-weight:bold;">To:</span></b> Asa Jay Laughton <asajay@asajay.com>; "tpr@teampanteraracing.com" <tpr@teampanteraracing.com> <br clear="none"> <b><span style="font-weight:bold;">Sent:</span></b>
Tuesday, January 7, 2014 7:31 AM<br clear="none"> <b><span style="font-weight:bold;">Subject:</span></b> Re: [TPR] More follow up
from Chuck Nyutten<br clear="none"> </font> </div> <div class="yiv2071020711y_msg_container"><br clear="none"><div id="yiv2071020711"><div><div style="color:rgb(0, 0, 0);background-color:rgb(255, 255, 255);font-family:HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif;font-size:10pt;"><div><span>Bud can do 130?</span></div><div style="color:rgb(0, 0, 0);font-size:13.600000381469727px;font-family:HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif;background-color:transparent;font-style:normal;"><span>At Silver State? ;-)</span></div><div style="color:rgb(0, 0, 0);font-size:13.600000381469727px;font-family:HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif;background-color:transparent;font-style:normal;"><span><br clear="none"></span></div><div style="color:rgb(0, 0, 0);font-size:13.600000381469727px;font-family:HelveticaNeue, 'Helvetica
Neue', Helvetica, Arial, 'Lucida Grande', sans-serif;background-color:transparent;font-style:normal;"><span>Look I can do 185 at sealevel and Bud is somewhere south of
sealevel! HAHA</span></div><div style="color:rgb(0, 0, 0);font-size:13.600000381469727px;font-family:HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif;background-color:transparent;font-style:normal;"><span>Here's the guys to ask....what is JB running for a carburation...he has had several runs between 130-135 AVERAGE which meant he was hitting 150-160 in straights....</span></div><div style="color:rgb(0, 0, 0);font-size:13.600000381469727px;font-family:HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif;background-color:transparent;font-style:normal;"><span><br clear="none"></span></div><div style="color:rgb(0, 0, 0);font-size:13.600000381469727px;font-family:HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif;background-color:transparent;font-style:normal;"><span>Note to Grumpy: Chime in here with your wisdom ;-)</span></div><div class="yiv2071020711yahoo_quoted"
style="display:block;"> <br clear="none"> <br clear="none"> <div style="font-family:HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif;font-size:10pt;"> <div style="font-family:HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif;font-size:12pt;"> <div class="yiv2071020711yqt5390076889" id="yiv2071020711yqt63859"><div dir="ltr"> <font face="Arial" size="2"> On Monday, January 6, 2014 10:05 PM, Asa Jay Laughton <asajay@asajay.com> wrote:<br clear="none"> </font> </div> <div class="yiv2071020711y_msg_container"><div id="yiv2071020711">
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Hi gang,<br clear="none">
<br clear="none">
As I continue my edumacation bout cars and stuff.... I wrote Chuck
again asking about the option of a vacuum secondary carb instead of
a double-pumper as he originally recommended. He was candid in his
response and I take it with the same grain of salt I try most things
with. You can read the trail below.<br clear="none">
<br clear="none">
I also talked with our friend Bud Hower, who sent photos and specs
of his carb. His Holley is nearly identical to mine, though it may
not be an "emissions" model, and he gets 130 top end without a
problem and maybe more. That may simply mean mine being an
emissions carb might be channeled and jet differently... for fuel
economy and not top end.<br clear="none">
<br clear="none">
Note, I'm not spending any more yet, I'm still investigating.<br clear="none">
Asa Jay<br clear="none">
<br clear="none">
-------- Original Message --------
<table class="yiv2071020711moz-email-headers-table" border="0" cellpadding="0" cellspacing="0"><tbody><tr><th colspan="1" rowspan="1" align="RIGHT" nowrap="" valign="BASELINE">Date: </th><td colspan="1" rowspan="1">Mon, 6 Jan 2014 14:45:10 -0600</td></tr><tr><th colspan="1" rowspan="1" align="RIGHT" nowrap="" valign="BASELINE">From: </th><td colspan="1" rowspan="1"><a rel="nofollow" shape="rect" class="yiv2071020711moz-txt-link-rfc2396E" ymailto="mailto:form@chucknuytten.com" target="_blank" href="mailto:form@chucknuytten.com"><form@chucknuytten.com></a></td></tr><tr><th colspan="1" rowspan="1" align="RIGHT" nowrap="" valign="BASELINE">To: </th><td colspan="1" rowspan="1">'Asa Jay Laughton' <a rel="nofollow" shape="rect" class="yiv2071020711moz-txt-link-rfc2396E" ymailto="mailto:asajay@asajay.com" target="_blank" href="mailto:asajay@asajay.com"><asajay@asajay.com></a></td></tr></tbody></table>
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<div class="yiv2071020711MsoNormal"><span style="font-size:11pt;color:rgb(31, 73, 125);">If you are going to buy a new carburetor, I would not
recommend a vacuum secondary carburetor. I use double pumper
carburetors on many vehicles that claim they use them on
performance street vehicles. I stay with my original
recommendation of a 750-2003 carburetor $833.00. </span></div>
<div class="yiv2071020711MsoNormal"><span style="font-size:11pt;color:rgb(31, 73, 125);">Vacuum carburetors tend to drop back on performance on
the top end and that is exactly the condition you are
describing. A vacuum carburetor is a good choice if you only
want fuel economy but you are not going to be happy with that
carburetor when you want to go racing. </span></div>
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<div class="yiv2071020711MsoNormal"><b><span style="font-size:11pt;color:windowtext;">From:</span></b><span style="font-size:11pt;color:windowtext;"> Asa Jay Laughton [<a rel="nofollow" shape="rect" class="yiv2071020711moz-txt-link-freetext" ymailto="mailto:asajay@asajay.com" target="_blank" href="mailto:asajay@asajay.com">mailto:asajay@asajay.com</a>]
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<b>Sent:</b> Friday, December 27, 2013 1:33 PM<br clear="none">
<b>To:</b> <a rel="nofollow" shape="rect" class="yiv2071020711moz-txt-link-abbreviated" ymailto="mailto:form@chucknuytten.com" target="_blank" href="mailto:form@chucknuytten.com">form@chucknuytten.com</a><br clear="none">
<b>Subject:</b> Re: Friend or Fellow Racer</span></div>
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<div class="yiv2071020711MsoNormal"> </div>
<div class="yiv2071020711MsoNormal">Thank you for the recommendation. Based on
the fact I don't race the car all the time and in fact drive it
more as an around-town car until open road race season, I would
think a vacuum secondary would be better for fuel economy.
Presently I get nearly 22 MPG on the highway, which is nice;
when racing, it doesn't really matter as long as enough fuel is
being metered to the engine. However, during the SSCC this year
I felt the carb was leaning out and perhaps even starving the
engine at high rpm, which is why I'm investigating a new carb.<br clear="none">
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Do you work with vacuum secondary carbs and what is your opinion
of them?<br clear="none">
Thank you,<br clear="none">
Asa Jay<br clear="none">
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<pre>Asa Jay Laughton, MSgt, USAFR, Retired</pre>
<pre>& Shelley Marie</pre>
<pre>Spokane, WA</pre>
<pre>****************************** </pre>
<pre><a rel="nofollow" shape="rect" target="_blank" href="http://www.racingagainstautism.com/">http://www.racingagainstautism.com</a></pre>
<pre><a rel="nofollow" shape="rect" target="_blank" href="http://www.teampanteraracing.com/">http://www.teampanteraracing.com</a></pre>
<pre><a rel="nofollow" shape="rect" target="_blank" href="http://facebook.com/racingagainstautism">http://facebook.com/racingagainstautism</a></pre>
<div class="yiv2071020711MsoNormal"><br clear="none">
On 12/9/2013 8:51 AM, <a rel="nofollow" shape="rect" ymailto="mailto:form@chucknuytten.com" target="_blank" href="mailto:form@chucknuytten.com">form@chucknuytten.com</a>
wrote: </div>
<blockquote style="margin-top:5pt;margin-bottom:5pt;">
<div class="yiv2071020711MsoNormal"><span style="font-size:11pt;">If you want
performance, I have a 750-2003 double pump carburetor, four
corner idle which would work very well for your situation.
$833.00 I looked up the carburetor you presently are running
and according to the Holley info I would not recommend
putting any more money into that core. Your present
carburetor is an ok core for general use but not the best
core for performance.</span></div>
</blockquote>
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