I'll check the spark/voltage tonight and see whats up.
Dave, yes I replaced that old resistance wire years ago and have the straight 12V wire.
You old-timers here know that I've been down this problem road more thsn once over the years. I'll go for months with no problems at all, then the dreaded "won't start today" virus takes hold again.
'68 428 HO M3 Monster, 4-on-the-floor! Need I say more?