Swap to electronic ignition in a /6

There's three common budget ignitions:

1. Mopar electric distributor, ignition box, and voltage regulator. Sometimes sold as a kit with a harness, or can be yanked from a junkyard.
2. Pertronix Ignitor. A bolt in kit that drops into a points distributor.
3. Mopar electric distributor with a GM HEI module. No kits but pretty cheap to piece together.