Electronic Conversion Kit
Didn't it come with this...............
https://www.mopar1.us/electronic.html
That's a nice copy of the older MP instructions.
Except for the illustration at the end.
No idea where that came from but its misleading and drives certain helpful people here nuts!
Funny but not to those confused trying to use it.
Schematic of a '72 main and ignition circuits
Schematic of '72 equiped with ECU. (I forget if the wire connecting to the coil is brown or dark blue in '72)
A conversion can be done a little simpler since the newer ECU's don't need the 5 ohm resistors.