my nightmere (msd)

OK Matt, I think I know what the problem is. I've seen it before. If you have spark from the coil, but no spark coming from the distributor your rotor is shorting out to your distributor driveshaft. The MSD ignition is way hotter than your stock ignition and the spark is finding it's way to ground through a crack or carbon trail that wouldn't cause a problem with a stock ignition. Replace your rotor.