The truck needs 3 things to run.
So, here's what I'd do.
1. Turn the key "on", do not try to start it. Remove the air clean and look down the throat of the carb or throttle body. I'm not sure which that year has. Operate the throttle linkage and see if fuel is squirted into it. If there is, then you know you've got fuel.
2. Remove the top of the distributor cap. Look at the rotor (black thing in the middle of the distributor sitting on top of the shaft) is the metal tab on it warn or black on the edge?
3. Look at the contacts on the inside of the cap. Are they warn or black?
If all the above are good. Let us know and we'll have more ideas.
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