Help with stock EFI

It makes no difference what fuel pump you run as it’s just an on/off signal from the ecu controlling a relay. What is important is the the obd1 and obd2 used different pressures. You can use a stock pump in your tank and it will have the regulator built in (read, easy) or you can use an aftermarket pump and regulator and add a return line (better control) but whatever route you take get the pressure set correctly.