Quote Originally Posted by charlescfp View Post
Which Mallory pump are you using? I did a quick look and found a P/N 22257 for EFI.
That is the one. They make a bigger one too if you need it. P/N 29257.

I had a few noisy carb pumps back when I ran a carb. I hated the noise and was recommended to try a Mallory. It was so great that when I converted to EFI, I switched to the EFI version of the same pump.

I also run a retun system. I have a fuel rail mounted regulator set to 45psi.