[Gearhead999]

If you swap the original front cover and make sure that there is an ecentric bolted on the front of the cam to drive the fuel pump.
The manual pump will work.

If there isn't an ecentric on the cam. You should be able to take the one off the old engine and install it on the crate motor. If you do that....make sure that the cam pin sticks out of the cam gear enough to drive the ecentric. Also, that the bolt is long enough and is a grade "8" bolt. Locktite and torque it too.