"Kultulz, When I take the carbs off to install spacers I will have someone inspect, rebuild or replace with something less unusual! A friend of mine suggested EFI but I kind of like the dual quads carburetors. Old school cool, you know?
Any suggestions on a set of carbs that would be good for this application?
What is that a picture of??"
I would try and use what you have (they are FORD issue). Most likely, the problem(s) is in either the carb(s) or linkage adjustment. Maybe something binds when hot and not cold? Will cause a vacuum leak and very lean mixture and she wants to shut down.
The photo is of a valley pan especially for the 1957 E-CODE (8V). Re-read the description.
____________________________