Tom:
I am running a EFI setup. The return line goes along the passenger side too. # 8 AN line aka a garden hose with braided stuff over the top
I spent the better part of 2 days under the car taking out the old fuel line and running the new. Attached the line near the same spots that the battery line is attached to zip ties are wonderful. Lots more options to fuel injection now than 3 years ago. My fuel pump is an external one what a job to get that sumB%&ch mounted!
Had to cut a hole in the top of the fuel cell to put in the mounting plate for the return line to go into. I believe the fuel cell has a place aready in it but you just have to cut it out. Call Brian or Barry to find out the name of the manufacturer of the fuel cell. The company makes a setup to mount a return line in was worth the $$. Give me a call at work 502-896-2999 x112 and go over the stuff with you.
J.A.