I'm with HRL. You need a nearby Stovebolt guru to spend 32 minutes to find out what is going on with your poor running engine issue. (If its HRL, it will take an extra 23 minutes because he talks slower. smile )
It is my opinion that you have had more than one issue going on at the same time. This is the most challenging of situations to diagnose in person, let alone trying to do it via keyboard..
What you have had done in an attempt to fix it may have added one or more problems, complicating things further.
This is why "Test, don't guess." is brought up on this site so often. (Thanks to HRL.)
Mine is, "Its never the carburetor."
Carb King Jon once stated, and I paraphrase, "Apparently the updraft carburetors were much more reliable based on how many rebuild kits we sell." He went on to state that the reason why he didn't sell many updraft kits was because that carburetor was difficult to remove, therefor the mechanic instead, worked on the issue which was actually causing the problem.
Carl


1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission