Not true. Look at 273's post. The wiring Joe gave is only for the 1-ballast type and would melt the ECU if the original one that needs the 2-ballast. As I said "more confusing".
Any ignition system that requires a ballast resistor is "sub-par". Electronics has progressed a lot.
I paid maybe $15 for the HEI parts I pulled at the junkyard, including coil. The factory GM cable runs from the module to coil. How easy is that? On a non-slant, I wouldn't even fool with that and just buy a new HEI distributor for $45 (small block). Anyone who pays $250 for a Mopar ignition setup to re-wire an older points engine seems silly to me. You aren't even staying original.