Sourcing 5-6 psi fuel pump help

[ahoke]

Fuel pump went out on my '72 C20 350 with the stock quadrajet. The one that was on it was a AC Delco mechanical pump with a 3/8 outlet fitting and a return line with the elongated pump body. Took a while but I found this one from summit:

https://www.summitracing.com/parts/CRT-M6101

Installed and the carb is flooding, rebuilt the carb, adjusted float, still floods. Looked on carter's website and says the psi min is 7.5 and max 9, not the 6 summit states. ANYWAY.....anyone have any advice on finding one with lower pressure rating? From what I can tell quadrajet likes about 5 or 6psi. I'd prefer not to have to add a pressure regulator inline if I can avoid it.

[53burb]

I haven't heard about quadrajets being sensitive to pressure....Edelbrocks I hear alot of....one of the cures they use, if they dont want to use a separate fuel regulator, is they use an Edelbrock fuel pump...they pump at a lower psi....

[Rust_never_sleeps]

Is there fuel flowing back to the tank through the return?