65 Barracuda electronic ignition, orange box, ballast resistor questions

You got the upgrade harness that incorporates electronic ignition and the 70 up regulator. I bought that same harness and it worked great. Most people want to get away from points and mechanical voltage regulators. I just bought the 4 pin ballast as it didn’t matter with my 4 pin ECU. The new ballast has holes for alignment on both connectors.

I bought a new 70 and up voltage regulator that has the triangle connector and swapped the grounded field connection on the alternator with an ungrounded one from an old alternator. Or you could just get another 70 up alternator.