[Shyguy]

A lot of good input so far. When I first get an old vehicle I check all the rubber hoses in the fuel line to make sure that they are intact and not kinked. The should be one under the cab and one on the suction side of the fuel pump.

Also I put Sea Foam in the gasoline tank with a fill-up of fresh gasoline.

Your symptoms could point in many directions including fuel supply, but you need to make sure that the points, rotor, cap and wires are good. I see you have already rebuilt the carb and replaced the wires and spark plugs.

A week coil can also show some of the same symptoms.

Start with the fuel system first and if that does not solve the problem go to the ignition system. Do the easy cheap stuff first.

Also you need to put a fuel filter between the fuel pump and carb, preferably a metal one.

Just some ideas.