Early 70's electronic distributor

Easiest is the "ready-to-run" HEI distributor by Ningbo, ~$45 plus you need an e-core coil. See Skip White Performance (ebay) or others. I don't know the curve, but won't matter for me since using a Holley Commander 950 for spark control. Easiest wiring and best spark with a Mopar e-distributor is to use the GM 8-pin HEI and coil from a 1985-95 V-8 truck. The Mopar pickup will trigger it, but get the polarity right (spin in air, view pickup teeth w/ timing light, assure it sparks when they align). The GM cable connects the HEI and coil, so all you need is 12 V IGN power. Also has a tach wire out. You can use the Mopar ECU, but will be much more wiring effort (ballast or dual ballast), all for a weaker spark and less reliable.