Cheap electric fuel pump, or cheap mechanical fuel pump?

Master 40777 vs an electric pump with E1037 173 stamped in the side. The electric pump works, don't know about the mech...

A new mechanical fuel pump is under $20 new. If in doubt, I'd just pick up a new one. Those old mechanical fuel pumps handled the 450hp/454 LS6 just fine.

Electric are noisy.