Quadrajet Problem Solving > Diagnose a Quadrajet carburetor problem

Carb running super rich at ideal max vacuum

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cj7:
thanks, im getting ready to order the book, hopefully it will help

Cliff Ruggles:
Not idling below 900rpm's should tell you something.

Vacuum leak someplace, or initial timing is way too high.  Are you using vacuum advance at idle speed?  Do you have any control with the mixture screws at all?....Cliff

cj7:
the idle part is a linkage problem, which i just fixed, but i have control in the idle screws. something new i found out is that my air horn gasket was soaked in gas when i took it apart, so im assuming warpage, it doesn't flood but could that cause a rich problem, like over flowing into a air bleed or somthing

Cliff Ruggles:
We have thicker airhorn gaskets for them, which usually helps with the gasket soaking issue.....Cliff

cj7:
awesome, ill have to get one. also found something else, when i spray carb cleaner down the oil filler into the top of the heads without the pcv on, i loose vacuum and the rpm drops, does that mean a intake leak

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