Mopar Perf Elec Conversion Kit
Many, many ways to go about this
One is certainly the "purist" Mopar breakerless
Many guys LIKE the Pertronix. My only comment there, is, you have "non standard" parts, so you might just as well buy TWO of the Pertronix kits, in case you get stuck somewhere
Another good way, and it's what I'm doing, is the Mopar breakerless distributor --which you can pickup up lots of places, "good shape" used, "rebuilt", or an Accel "look alike"
and then use that to trigger a GM HEI module. Very simple to hook up, cheap, and you can throw an extra module in the glove box
Other than a Mopar breakerless distributor, this is all there needs to be to it, although you CAN use better coils