What micron size fuel filter is that before the pump? I hope it is not a BG 500 GPH filter, they are 10 micron according to the servie techs at BG. Way to small for most electric pumps to have before the pump according to the service techs at Magnafuel I did the same thing with a BG 500 filter, I'm switchting it to a 70 micron before the pump and I will reuse the BG 500 filter after the pump