Been there done that.

Don't blame your cam (as I did). Your fuel pumps are absolute garbage right out of the box. The laborers in China are slapping this stuff together with absolutely no quality control.

Buy an original mechanical pump and have it rebuilt by Then & Now Automotive.

Here's the thread (with pictures) I started about my problem which is identical to yours (short lived new pump, brand new pump doesn't work at all, pump arm worn in only 1/16" of it's entire width).

https://www.stovebolt.com/ubbthread...umps-and-other-nonsense.html#Post1463250

Read the first page and then skip to page 6 if you're interested. The secondary, unrelated problem turned out to be debris in the carburetor.

Last edited by Gdads51; 06/12/2023 8:01 PM.
1950 Chevrolet 3100 (Ol' Roy)

1939 Packard Standard Eight Coupe (The Phantom) | 1956 Cadillac Coupe de Ville (The Bismarck) | 1964 Ford Galaxie 500 coupe |1966 Ford Mustang (Little Red) | 1969 Pontiac GTO (The Dishpit) I 1979 Ford F-100 | 1976 Ford F-150 (Big Red) | 1995 Ford F-150 (Newt)