SOLVED! 318 2500-3000 rpm idling issue. Don't think its a regular vacuum leak. Swapped 2 intakes, 2 carbs ,and 6 different gaskets still no luck.

PlymouthPontiacEnthusiast said
Okay so I should try dropping the idle air bleeds down a size or two? There are eight, four are for under throttle and four are for idle is that correct?
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I believe you go bigger to lean the idle but I would do some research and/or let somebody with experience weigh in.