i am running new fuel lines in my 90 notch. all i have is a new pump assy, and the rails/duckbill fittings. both the ends on the fittings where the nylon lines go on are the same size... i thought the return was bigger? i plan to run 5/16 line from rails to tank return and pressure. is this ok? i also need to know which of the lines coming out of the tank, is the outlet/pressure, and the return line. thanks.
