I'm not trying to piss anyone off or throw the edelbrock carbs under the bus. In fact i had a 750 edelbrock on my 440 and the thing ran great.
I just think this carb might have had it. I bought it used. It sat a while I tried rebuilding it and the rebuild hasn't worked.
I did put a 4 hole phenolic spacer under the carb with all new gaskets.
I also sprayed carb cleaner around the intake gaskets and carb gaskets to check for vacuum leaks and came up with none.