Re: Fuel pressure
If you're running a stock carb, intake, and fuel pump it should all work together. with no additional parts. Something is giving it too much fuel pressure, which could be the pump or it could be a restriction in the fuel return line.
I run an OEM-replacement Carter fuel pump with an Edelbrock Performer carburetor (got used, rebuilt and switched the jets & needles myself) and mine runs very well. But I also use an Edelbrock heat insulating gasket to prevent hot-soak problems. Without the gasket, it would occasionally crank for a bit before starting hot. And for the record, I use a 5/16" fuel line and it's a basic 350 crate engine.
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