Fuel pump choices?

Stay away from a Holley or Carter pump. If you can afford a new Mallory 140 I’d use that. You can find them used on fleabag cheap sometimes.

Then I would suck it up and use the Mallory 29388 bypass regulator and run a return line. I don’t do any electric fuel pump systems anymore without a bypass.

The pump will live much longer. You will get cooler fuel to the carb. The fuel pressure will be much more stable. It costs a bit more because you have to run the return line and the regulator is a bit more expensive.

BTW, I wouldn’t buy a regulator with the Holley name on it either. When they acquired Mallory they should have killed that entire junk holley line and just used the Mallory stuff.