Points to electronic ignition for a 318

They also sell a complete distributor with their internals in it already. That would be the easiest way to go. If you just buy the internals to install in your points distributor, you may end up having to rebuild the distributor before installing the Pertronix system. It won't work if there is excessive wear.

There is also an HEI conversion. I don't know anything about that though. I'm sure someone will reply about that. I'd stay away from the MP electronic conversions...too much trouble with ECU failures and bad distributor design.