The most simple would be to put a pentrniox set up in the points distributor you have.
You can pull the stock parts off any small block from about 73 to 80, with the wiring and make it work.
I prefer to do the following, trade the points distibutor in at napa for a stock re-manufactured electronic distributor and do a hei conversion in it, I have 3 old mopars running this way and it costs $100.
There is a complety contained off shore made distributor for like $75 buck, I have not used one, but the quality in some have not been that great.
There is also plenty of MSD, Mallory after market units which are really nice.
