Jerry,
So the voltage drop is to protect both the coil and the points.
I have a 66 F100 that I replaced a wiring harness in 20 years ago. I had issues with bad coils and points fouling. I couldnt figure out what was wrong so I parked it. From what you told me it looks like I need a resistor or resistor wire installed into the ignition system. Now I know. From curiosity on how a chevy ignition system works to a posable solution for a problem I gave up on years ago. Cant wait to see if adding a resistor does the trick.
Thanks for the knowledge.