Car died during driving

I had somewhat the same issue with my 72 Demon 340 Auto. It would do what you described every once in awhile. I mean I would go 8-9 months with no issues then it would happed. I can't say for sure but I think my neutral safety switch acting up, but It made sense to me. I was told that next time it happened to move the shifter back and forth a few times. Bingo it started! I haven't had the issue since I replaced the switch and adjusted the linkage (Knock on wood). Hope this helps.

That's good! If there are no defects/melted plastic then that should be ok. Also the comment about the NSS is another thing to check out. It's a matter of elimination. Start with the easy stuff like connections. But get a plan, and go through it one by one.
Ok.... I will look into a NSS switch. Could anyone explain how that could shut the car off? I know the starting part about it... That night I do remember trying it in park and neutral and even in gear....Nothing, but that last time I did push it firmly into park and it cranked.... Also do anyone think the battery may be acting up? Voltmeter reads around 12 at idle and 14 under load...