JallenChrysler

I am wondering if the venturi cluster is bad in the bowl section. When I swap out the carburetor it fixes the issue. My problem is that I want the throttle plate from carburetor b (because the shaft is worn causing a vac leak and high idle ect) but the rest from carburetor a. I have orderd a kit to place a bushing in the throttle shaft of carburetor a, that way everything works. However I am still left wondering what is wrong with carburetor b. It has been completely rebuilt, I doubled checked it myself and everything is in order that can I see. The only thing I can think of is the venturi cluster is bent or clogged or bad is some way that I can't perceive. This could be the reason why when 48ply1stcar swapped the bowl it was fixed. Because the bowl has the venturi. I know my idle screws are correct as I have three carbs with the same ones in all of them and they have very distinct heads. I know the excess fuel is coming from the transfer slots because after running the car with carburetor b and taking it back off I can see where the gas was being supplied from. There are only two places, the transfer slots and idle screws. And I know that the butterfly has been set correctly to show the correct amount of transfer slot. Any ideas are much appreciated. Also my timing was not the issue.

Did you find out if it was the bowl? I am having the same issue. I have not been able to solve my problem.