Stoney,
As always, allow me to draw upon my vast repository of usually worthless knowledge to help you out here.
As I was fortunate enough to come up dirt ass broke, I learned a thing or two about cars along the way. I had no choice if I wanted to roll. And I always wanted to roll.
Your problem is in the fuel system more than likely. The first thing I'd go after is the fuel filter. Its a $5 part and it should be right there under the hood. A cylindrical can. I'm sure a youtube search on your part will cover how to swap it out. It's probably less than $15 on Rock Auto.
Next, if that doesn't work, run some carb cleaner down the throat of the carb, and make sure that butterfly valve moves freely. I suspect it has an electric choke, easy to test, just throw 12V on the leads and it should flop that butterfly valve. Again, youtube will make this easy.
The next thing is a carb rebuild. But you don't have to do that. There'll be a little plate on top of the carb where the fuel line comes in and that plate is where your float is (underneath it, inside the carb). Sounds hard, but its not. A phillips screwdriver is all you need. The float has a needle valve attached to the hinge on it. That needle valve controls fuel flow into the float chamber and keeps it a predetermined level. Kinda like your toilet lol... in a way. That needle valve has to seat perfectly or you'll run rich af and you'll be blowing black smoke. Not blue, that's oil... but black. No need to remove the carb, just that plate, the float and needle valve, and then clean the little funnel shaped thing the point of the needle valve seats on. Use a little wire to poke down in there.
See here's the thing Stoney. Eythynol in gasoline eats rubber. You'll get all kinds of debris in your system over time as the rubber breaks down. Especially if the car sits up. So 109K miles on yours, yeah... that can be the problem. Its an easy fix though, it really is. I suspect its the filter though, start there for sure.
If that doesn't fix it, its a vacuum leak. Which is also a very real possibility. Those tubes get old and decompose too. Easy find. Buy a can of starter fluid, let the truck idle, and spray the starter fluid around the engine compartment while its running. Concentrate on all those black rubber hoses. The engine will rev up when you get near the leak as the vacuum will suck the aerosol starter fluid into the carb. You just zero in from there. I'm sure some old redneck has a youtube on this too.
For real that truck is a classic. And with 109K on it, if it doesn't have a lot of rust which most AMC/Chryslers did... its worth keeping up with.
New plug wires never hurt either.
Just like I told you with the AC at the house, and the circuit breaker panel, if you don't want to do this stuff, you need to find some old retired cat that works out of his garage to make spare $'s to keep away from his wife. Ask around. Go into a cheezy used car dealer and ask who they know. They'll know someone cheap.
Ok, back to stocks.
ttyl Stoney.
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