We ran 3/8 Ni-cop from pump, down frame & back to fuel filter. It's so easy to bend and work with.
https://www.jegs.com/i/JEGS/555/635806K/10002/-1
Then rubber fuel hose, added protective sleeve over it, from filter looped around into tank. (That way if ever have to remove tank can drop it easily.)
The vent is just rubber hose with a breather stuck on end; that was routed up into/between bedside inner & outer skin.
Pic on post #18 here
http://67-72chevytrucks.com/vboard/s...32#post8653432