No power to coil might be an ignition switch or ASD relay issue. Someone correct me on that if I'm wrong. No power out of coil with no warning would most likely be the hall effect pickup in the distributor.

1968 Charger project. I don't have a fender tag or a buildsheet, so it's getting a 440. Help me decide on a color--most everything looks great! (NOT white. My Challenger is white. Need some variety :D)
1974 Challenger 360
2012 Challenger R/T
1991 Dakota 5.2