According to the FSM, max fuel pressure should be 4psi. 2psi to 4psi is the acceptable range. The needle valve in the Carter YF can be overpowered and the fuel bowl will overflow.
My truck runs on 2 1/2 psi.
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)
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