I have seen items in archives on this, but I do not completely get it.

My 91 2WD seems to not want to take the last 2 or so gallons of fuel, just
overflows, and fill pipe drains SLOWLY.

Didn't have this issue 2k miles ago, but since then, I have replaced the
fuel lines (not resealed tank tho)

and r&r'd air cleaner. Is there something I have done in this work to create
this issue - vent to air intake, or kinked

something? I guess I need to reseal tank when I get back home, but is there
something I can check on the road?

Mark