Quadrajet Problem Solving > Diagnose a Quadrajet carburetor problem

idle issues on my Qjet 7040203

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Cliff Ruggles:
At least 30 percent of what we do here is correcting issues with "rebuilt" carburetors, so I'm not surprised you are having issues and can't get them corrected easily......Cliff

monteholic:
my idle tubes are .036
the idle restricter is "approx" .050
upper air bleed is a wopping .086!
lower air bleed is "approx" .050

your bushing kits are AWESOME! 8)
just ordered a kit for the secondary shaft

my concerns are with that upper air bleed...too large?

monteholic:
and the mixture screw holes are .086

Cliff Ruggles:
The idle system specs are stock, and pretty conservative.  If the cam is still the stock cam, it should be enough idle fuel.  If the cam has been changed, I'd up the idle tube size accordingly.....Cliff

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