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Hi gang,<br>
<br>
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>
<br>
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>
<br>
Note, I'm not spending any more yet, I'm still investigating.<br>
Asa Jay<br>
<br>
-------- Original Message --------
<table class="moz-email-headers-table" border="0" cellpadding="0"
cellspacing="0">
<tbody>
<tr>
<th nowrap="nowrap" align="RIGHT" valign="BASELINE">Date: </th>
<td>Mon, 6 Jan 2014 14:45:10 -0600</td>
</tr>
<tr>
<th nowrap="nowrap" align="RIGHT" valign="BASELINE">From: </th>
<td><a class="moz-txt-link-rfc2396E" href="mailto:form@chucknuytten.com"><form@chucknuytten.com></a></td>
</tr>
<tr>
<th nowrap="nowrap" align="RIGHT" valign="BASELINE">To: </th>
<td>'Asa Jay Laughton' <a class="moz-txt-link-rfc2396E" href="mailto:asajay@asajay.com"><asajay@asajay.com></a></td>
</tr>
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<p class="MsoNormal"><span style="font-size: 11pt; font-family:
"Calibri","sans-serif"; 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. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family:
"Calibri","sans-serif"; 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. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family:
"Calibri","sans-serif"; color: rgb(31, 73,
125);">
<o:p></o:p></span></p>
<div>
<div style="border-right: medium none; border-width: 1pt medium
medium; border-style: solid none none; border-color: rgb(225,
225, 225) -moz-use-text-color -moz-use-text-color; padding:
3pt 0in 0in;">
<p class="MsoNormal"><b><span style="font-size: 11pt;
font-family: "Calibri","sans-serif";
color: windowtext;">From:</span></b><span
style="font-size: 11pt; font-family:
"Calibri","sans-serif"; color:
windowtext;"> Asa Jay Laughton [<a class="moz-txt-link-freetext" href="mailto:asajay@asajay.com">mailto:asajay@asajay.com</a>]
<br>
<b>Sent:</b> Friday, December 27, 2013 1:33 PM<br>
<b>To:</b> <a class="moz-txt-link-abbreviated" href="mailto:form@chucknuytten.com">form@chucknuytten.com</a><br>
<b>Subject:</b> Re: Friend or Fellow Racer<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">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
of them?<br>
Thank you,<br>
Asa Jay<br>
<br>
<o:p></o:p></p>
<pre>Asa Jay Laughton, MSgt, USAFR, Retired<o:p></o:p></pre>
<pre>& Shelley Marie<o:p></o:p></pre>
<pre>Spokane, WA<o:p></o:p></pre>
<pre>****************************** <o:p></o:p></pre>
<pre><a moz-do-not-send="true" href="http://www.racingagainstautism.com">http://www.racingagainstautism.com</a><o:p></o:p></pre>
<pre><a moz-do-not-send="true" href="http://www.teampanteraracing.com">http://www.teampanteraracing.com</a><o:p></o:p></pre>
<pre><a moz-do-not-send="true" href="http://facebook.com/racingagainstautism">http://facebook.com/racingagainstautism</a><o:p></o:p></pre>
<p class="MsoNormal"><br>
On 12/9/2013 8:51 AM, <a moz-do-not-send="true"
href="mailto:form@chucknuytten.com">form@chucknuytten.com</a>
wrote: <o:p></o:p></p>
<blockquote style="margin-top: 5pt; margin-bottom: 5pt;">
<p class="MsoNormal"><span style="font-size: 11pt; font-family:
"Calibri","sans-serif";">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><o:p></o:p></p>
</blockquote>
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