The number one problem with EFI conversions is fuel delivery. Fuel shearing, a.k.a. aeration, is the result of inline pumps, improper fuel-line routing, and certain types of fuel filters. The sure cure is an in-tank fuel pump like this. Use a stock one from an EFI rig if it will fit your application, or use an aftermarket pump that can be adapted to many types of tanks. Note the large-capacity replaceable suction filter at the bottom that stays submerged.