Yep 

In hindsight I probably should have cut the line and removed the pump to the bench.

But I put never seize on the new pump fitting so the next guy in 55 years can remove it without the struggle...

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.