Rebuilding it is probably the best course of action but make certain the pump is the problem. Test the fuel pressure at the carburetor with the engine running on whatever is in the carburetor bowl
You can hook a fuel pressure gauge to the line just before it goes into the carb. It should be 2psi-4psi. My truck runs on 2.5psi
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)
| 
