FiTech EFI system

Anyone use one of these with their FItech ?

http://www.ebay.com/itm/400923324573?_trksid=p2060353.m1438.l2649&ssPageName=STRK:MEBIDX:IT

For an early A ?

is a 1/4 tube big enough for a return line.

Are people using their stock fuel line for the return and the supplied fuel line for the supply ?