F/U Pertronix Ignitor

Rug_Trucker said

I am thinking that the GM HEI conversion would be easier and cheaper for parts and availability.

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The advantage of the Pertronix is that you can use your existing distributor. There were similar earlier electronic conversions, like the Crane Cams XR700 I have on two cars. Pertronix fits the module inside the distributor as well. You can't get much simpler than it. I think their Ignitor II is equivalent to the GM HEI in performance. Their Ignitor III is superior w/ MSD.

HEI is easiest for a SB or RB engine, with a "ready to run" distributor" for ~$45 (ebay). They don't yet make it for a slant or BB engine, so you require a later Mopar electronic distributor. Then you must figure where to mount the HEI module. I recall one guy sells a plate to mount it to the bottom of the slant distributor. Others have posted photos. I put the 8-pin HEI module on my 64 slant, but haven't run yet.

Cost and complexity depends on many things. Is your points distributor re-usable? How much for an e-distributor (I got one new for $40). What coil will you use? You don't get much bang using the original points coil and ballast. Are you adding an MSD box? What I wouldn't do is pay the $250 I see listed for an original Mopar electronic setup. That keeps the ballast, weak coil, difficult wiring, and gives an often problematic module.