BigMike will cringe at this, but I'm actually using the carbed truck fuel line with zero problems.
I cut off one end of the high pressure fuel line at the tank, slipped it over the carbed line and hose clamped it in place. Same trick at the engine. I did this over a year ago with the intention of running a new larger fuel line and plumbing it correctly, but have never gotten around to it. Zero leaks, Zero problems. I know it is absolutely not the correct way to do it
, but it works as a "temporary" solution.
BTW, I'm using an EFI 4Runner tank in my 84 pickup...
Ryan