Difference in fuel pumps?

And then took the electric pump out? Or is it the kind that the mechanical pump can suck thru?
If there is fuel at the pump inlet we are waaaay ahead of the game. With the engine idling, just put a finger lightly on the outlet port. Your finger will be the checkvalve. Can you feel suction on the outlet side? If yes, the pump is likely defective. Keep your finger there for a few seconds, and the fuel should come. If it does not, then either the eccentric is not stroking the arm, or the return spring is not working, or the pump is defective. Do this with a short length of EFI hose, over a catch basin, and be prepared to shut the engine off. nm9 talked about this in post #8, but you mightof missed it.