I just finished re-plumbing an old Stovebolt that had plasic tubing-like you use on your swamp-cooler-for fuel line from the rear tank to the valve by the left rocker panel. It went through holes in the frame,over the frame,across the driveline,around the frame rail,through a hole in the crossmember,made a big loop ahainst the floorboards,and went across the driveline again,over the frame rail into the change over valve.(about 15 feet of tubing) Runs a TON better now.
Speed


1954 GMC 350
1957 GMC 1/2 ton
1962 Chevy C-30
1952 Chevy 6400 dump bed project truck
'98 Harley FLSTC
'66 Pontiac Catalina
'76 Chevy 1 ton Duallie
'84 Bronco II
'78 Dodge W-200
'81 Toyota 4X4 truck