So you're down to a simple no-spark (engine cranks but won't run) problem?

If that's the case, chase the spark back. If you don't have spark at the plugs, see if you have it coming out of the coil (into the distributor). If you DO, then the problem is in the distributor (cap? rotor?). If there's no spark coming out of the coil, then suspect the coil or (more likely) the igniter.