What is strange it's that they say to have a electric fuel pump, my brothers 1965 MF 150, and 1972 MF135 both have a mechanical lift "fuel" pump even though the fuel tank is above the injector pump, while a friends 1972 Ford 2000 with a diesel also has the fuel tank above the injector pump and is only gravity feed (all 3 have the same CAV injector pump). Just about every injector pump has a bypass line usually leading back to a fuel filter, or fuel tank so any excess fuel pressure/volume from a lift pump should be bleed off by the injector pump.