sinbad2000

I need to know where the other three lines connect to on my 89 350 iroc-z. The main fuel line can only go one place, so i know that one. The return line, the one to the canister and the one with the (pressure relief valve ? ). The sending unit has four lines, on the outside of the tank. Inside there are three lines with openings, and one that has a plastic cylinder around it. One line is longer than the one that holds the fuel pump and has the float on it. Is that the return line?... the line thats about an inch and a half long on the inside top goes to what? and the one with the plastic cylinder around it and about 2 inches long goes to what? I dont want to cross my lines. thanks. I am talking about the fuel sending unit, i only need to know which line running from the sending unit goes to the little valve by my rear drivers side tire, and which line connects to the line that goes to the charcol cannister.