Car died on the highway

[bad86ss]

Well, this was me a few days ago. Car died on the highway. Couldn't figure it out on the street so I had to get towed home.
My ignition is a MSD 6al box, MSD blaster 2 coil and MSD pro-billet distributor.
The car cranks, but no fire. I rewired everything hoping a wire somehow backed out, but it's still not firing.
Took the coil wire off and there's no spark. Tried another coil, still no spark.
Any help?
86 Monte Carlo SS old school 350