Idles fine then wants to die driving

Those vent lines are well known to rust up; can you actually blow through it? For that matter blow through the main line as well. Pop the fillercap first, Waaaay easier than dropping the tank for a look-see.And replace that short jumper hose at the sender, If you use gear clamps, use 4; 2 per end, with screwheads 180* apart and pointing in opposite directions,whenever possible. If that hose sucks air, the pump runs dry.

But if you have made up your mind that you have nothing better to do than drop the tank, and live in a warmer clime than Manitoba,well then,have at 'er. It may well be that the sock is varnished up.