Madscientist
I'm Awesome
Your fuel tank may not be venting. Go for a 15 min drive, get out and leave it running. crack the gas cap and see if there is vacuum at the tank. If so, that is killing your pumps. works it very hard to overcome the vacuum in the tank. Essentially a plugged filter. "Too big of an injector" would be loosing fuel pressure when run hard, wouldnt kill a pump. Bad wire going to the pump not carrying enough amperage will do it too.