[DeTomaso] Carb question

[Christopher Kimball]

My cam, as far as I know, is moderate--not extreme, but not too tame, either.

Date: Sat, 4 Aug 2012 20:01:34 -0400
Subject: Re: [DeTomaso] Carb question
From: michaelsavga at gmail.com
To: mbefthomas at comcast.net
CC: detomaso at realbig.com; chrisvkimball at msn.com

What kind of cam specs are you running?  I have a fairly radical cam on a 393, but use a QFT SS830 carb.

Do you have enough catb on the car?
Michael
On Aug 4, 2012 7:24 PM, "Mike Thomas" <mbefthomas at comcast.net> wrote:

Chris, try retourquing your manifold bolts: 35 f/lbs for the larger bolts,

25 for the two smaller ones on either side of the carb.

Mike



-----Original Message-----

From: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com] On

Behalf Of Christopher Kimball

Sent: Saturday, August 04, 2012 12:56 PM

To: detomaso at realbig.com

Subject: [DeTomaso] Carb question



I have a 408 stroker with a Holley 750.  When I try to set the idle, I seem

to have only two choices.  1) set the idle too fast (1800 rpms) so that when

I turn on the air conditioner, the car won't die (it goes to about 1100 rpms

with the a/c on), or 2) set the idle for 1100 without the a/c, but when I

turn on the a/c it drops down to about 500 rpms and is at risk of dying when

I let out the clutch.



I've tried adjusting the idle screw on the carb in minuscule increments, but

no luck getting better results.



Suggestions?



Thanks,



Chris

3846



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