3/8 is from the pump, 5/16 is the return line. 3/8 single line to the fuel rail. You have it figured out it sounds like.
yea i think i got it. i guess in all the threads i had read no one was talking about rubber hoses or clamps so i was a little confused on how this stuff hooked up.
96 2 Door Tahoe 4wd / 5.3 Swap / CAI / Tune / Pacesetter LTs / Magnaflow / LED Dash / Novak A/C Bracket /