I just picked up a 1988 Ram 50 with the 2,0 manual. I found a company that rebuilt my stock carb with lifetime warrantee. I decided to go with the holly 1-4 psi electric fuel pump, My question is if I eliminate the mechanical fuel pump, how do I connect the fuel return line to the tank, or do I just cap it off? also do I need a regulator, I have seen where some say yes and some say no.