[DeTomaso] Carb question

michael@michaelshortt.com michaelsavga at gmail.com
Sat Aug 4 20:01:34 EDT 2012


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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