1995 chev c/k 1500 cheyenne 4wd

Hoe long since a tune-up? If coil wire to center of dist cap, take it loose from the cap, hold close to engine ground, have helper crank it, do you see spark jump? If not, Check primary voltage to ignition coil, pink wire, goes hot with key on, use a test light to check for voltage. If no voltage have to check wiring circuit and feed to and from ignition switch. Does the dist rotor turn when you crank it? There could be other issues. I don't know what testing you've done?