fuel lines

how mush pressure does a return line have on a 91 S-10 with T.B.I. if any? thanx for all the help

enough to run hose clamps and not worry about it. assumeing it's a 4.3 tbi, when i went to a fuel cell, i ran a holly blue fuel pump. if i remember corectly the tbi needs only 9 to 13 psi or something

im worried about the return line going to the bottom of the fuel cell. does it have enough to go back into the cell in the bottom or will the gravity of the cell keep it at a stanf still?

oh it a 2.8 but they run on the same psi

i ran the return line back to the top of the fuel cell. you should have two fittings on top. one is the rollever vent and the other for the return. there is to ports on the bottom and i just capped one side off.

i only have on port on top what do i do?

is it a roll over vent? (ball check valve) or just a port

port

i was thinking or just cutting another in what do u think?