[Dave at Pelican Parts]

You might also try disconnecting the tach lead. That's the thinner black wire (with a purple stripe that can be hard to see) on the same coil terminal as the green wire from the points. If that wire is grounded or the tach is bad, it can keep the ignition from firing.

Probably lots of other stuff to check. There are a lot of things that it could be, but in order to check many of them you need the car to be in the failed condition.

Not sure what to tell you...

--DD