[DeTomaso] Carb question

gow2 at rc-tech.net gow2 at rc-tech.net
Sat Aug 4 15:59:34 EDT 2012


Vacuum advance ported or manifold?



> 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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