there is a connector that goes into the dizzy, 3 wires, using a light, inspect the wiring and remove old tape, ive seen broken wires there on a couple of cars. also check the three colant temp wires beneath the dizzy they have a habit of breaking as well, its because of the heat and oil that crack the outer wire casing.
if thats ok, you can check if the coil is getting a trigger signal from the dizzy at the coil pack connector. also check primary and secondary windings using a meter on the coil pack. let me know how you get on.