Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - Quadrajet Idle Strangeness
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Old 07-16-2007, 05:58 PM
F&J F&J is offline
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things on quadrajets I've seen:

-leaking welch plugs on the bottom of the main body casting. These are notorious for leaking, and most rebuilders put a special sealer over the plugs when the base is off. This also causes the bowls to be empty in a day or so, if you don't drive it much.

-Internal vacuum leak caused by warping. This usually makes the car almost seem like it's got a slight "cam", by the way it idles, and adjusting the mixture does still afffect idle quality, but can't seem to get it stable. Just went through this with a late 70s vette. It had a new kit and new gaskets did not help.
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