weird 86 k10 problem

[benoit454]

fuel line hasn't changed or got pinched, charcoal lines are plugged off and not used at all.

It's just what I said the truck does fine, no problems when it's above 1/4 tank.

Truck is hard to start and acts like it's flooding if it's on 1/4 tank, but runs and drives fine once started.

The wire and terminal were cleaned and crimped last dec. I had the tank removed but didn't clean inside. I bet I need to I heard from someone else the sock was dirty. i thought thoose were only on the fuel injected ones?

Block mounted factory replacement fuel pump.

As far as a miss or running rough, yea carb needs tweaked and tune up, cap, rotor, and wires.