[richtazz]

Welcome to AF.

You're probably in need of a fuel pump. The resistor bypass wouldn't affect hard acceleration, it is only used in low speed mode. I would get a fuel pressure guage and check fuel pressure before just arbitrarily replacing the pump, but with everything else you've already done, it's what I believe is your issue. Also, if you do find it's a fuel pump, there is an early and late model pump for your year, so make sure you get the correct unit.