Re: carb
 

HSAB plugged or maybe you have the bowl gasket or metering plate gasket installed incorrectly OR you have the wrong gaskets to start with---a symptom of definitely siphoning fuel out

Re: carb
 

Was one or more of the air bleeds plugged up ?

Re: carb
 

Question: Why would 2 seperate carburetors do the same thing
and the solution be a "plug'd" hi-speed air corrector be the answer?

Technically doesn't make sense unless jim lives in the desert an he doesn't.....

Re: carb
 

Run leak down test on engine. Bet you'll find the problem

Re: carb
 

Not sure if you wrote "its solved" but you can run the engine up to about 2500RPM and put a gloved hand or towel over the carb top when the engine has almost died remove your hand or the towel and let the RPM come back up---do this 2-3 times and see if it clears up ---what you are doing is going from vacuum to siphoning and jostling any particles that may been the bleeds or the idle passages--kinda self cleaning or sloshing process by going back and forth