there is a difference in return and vent lines
you need to know what you are talking about in order to know if you need it
my guess is, it was not a return line because they didnt come with one from the factory
it may have been a vapor recovery line though, check to see if it goes into a charcoal canister
as for bending my own hard line, i wouldnt do it
its been a while since i ordered mine but i think i paid less then $80 for a pre bent 3/8th fuel line
