750 Edelbrock issue

The only problem mentioned so far is smelly/variable idle. That will have nothing to do with booster design because the booster is not part of the idle cct.
- These carbs will take a LOT of fuel pressure before they flood, so I doubt it is excessive fuel pressure.
- Although unlikely, a pulsating PCV can cause idle havoc, especially if the cam was installed retarded. PCV should be disconnected & port plugged to test.
-Could be leaking needle & seats causing a high & varying fuel level, which would cause the problems listed.
-Seat may be loose in the body or gasket under it missing.
-Float level should be 7/16".
-Floats should be checked for leakage; make sure they are not bent, binding on body & free to move on their pivots.
-Check the idle feed tubes in the boosters for blockage & blow out the idle system with compressed air.
-If more than 0.040" of transfer slot is showing at idle, then that could be activating the main system & causing the problem. One thing other than cam duration that can cause excessive pri t/blade opening is if the secondary blades are not fully closing. This acts like an air leak, pri blades need to be opened further to access extra fuel from the t/slot. Fix is to loosen sec blade screws & reposition blades to fully close. Screws are staked; staking should be ground off to facilitate screw loosening/removal & Loctited once adjusted.