fuel cell question

Hey, I am bagging a hardbody right now, and we are ditching the gas tank. I found some desent priced fuel cells, but I have no idea where or what kind of pump/sending unit to get. I went to look at a local shop and he needed to know what psi fuel pump I need for a 1991 hb. could you guys help me out....thanks.

im not sure bout what kinda setup is on a nissan as far if its mechanical or electrical pump. If its an electric pump. Just use the factory one . Cut out for the sending unit and pump and your good to go! If its mechanical u can use that on as well . Just run your lines accordingly. You may have some extra vent/ return lines you might have to do away with