When bending fuel lines, fill them with fine blasting sand and tape the ends to keep the sand in place. The sand keep the pipe from collapsing. You can actually straighten a bend you have bent too far. I bought a 3 piece 3/8 line for my 63, it had one piece severely collapsed in shipping, filling it with sand allowed me to remove the collapse perfectly. Works for brake lines too.
On my old Chevies , higher performance engines with factory dual exhaust got 3/8 fuel lines, 283, 327. Single exhaust cars had 5/16.
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63 Parisienne sport coupe (The Big GTO), black, maroon interior, 409 4 speed; former owner of a 59 El Camino, 63 Corvette SWC, 62 Chev Bel Air SC. 1963- Pontiac top selling car in Canada
Mahone Bay, NS Still not old enough to need an automatic
