Help with stock EFI

Truckie said

I got my fuel pump modified and the hole in my tank. I made the hike so the original rubber gasket fits in it nicely. I was wondering, the original pump had openings in the side that I’m assuming were to let fuel in to cool the pump. Is is necessary to put a few holes in the side, just below where the two pieces come together?

Click to expand...

Necessary? I don’t think so for three reasons, one mine ran flawlessly. Two if you’ll notice the return fuel is fed right down the middle of the sending unit filling it while at anything but full throttle. Idle there is lots of return fuel, WOT there is not so much. Three, it’s submerged in fuel and not a sealed unit so it fills up anyway.