For years I ran an electric pump on all my old Mopars, carbed or EFI (started running electric pumps in the late 70s). I always hung the pump on the frame rail just in front of the rear axle, tilted at a slight angle with the fuel outlet up a bit higher then the inlet, and the line for the inlet dipped down to the pump. That way, the pump always had fuel in it on startup. I could hear the pump run at first start up on the carbed motors until the float bowl was filled, then it was pretty quite. I turned on the key to power the pump before any attempt to start, once the float bowl was full, they always started right up. I ran the cheap fuel pumps ($30 range back then, probably a lot higher now) and put 1000s of miles on them and never had to replace one on any vehicle I put an electric pump on. With the motor running, you had to listen real hard to hear the pump.