I have a chevy c1500 wt 94 4.3L I have spark on the coil, buy not on p[lugs

Stick a Phillips screwdriver into coil wire and lay it down so metal shank is 1 inch away from a metal (ground) surface on the engine - have helper crank engine while observing spark from shank to metal ground - - should easily jump that 1 inch gap and have an audible POP. IF that much spark is not present - replace the coil.