I bought an engine harness from Year One (M&H) for my 71 Bee 383. I bought harness HU117NM which is one modified for electronic ignition. My engine has an MP distributor and orange box but otherwise is electrically stock. I wondered about finding connectors for a 4-prong ballast resistor when trying to install the harness.
What should I do about it? Buy a 4-prong resistor? Modify the harness so it will fit my 2-prong resistor? How?
As the ECU is an orange box it will most likely have 4 pins. The harness is supposed to have 5 connectors (haven't checked yet). Will it hurt anything if I hook up the new harness to the orange box?
Anything else to be modified?
I sent an email to M&H but waiting for an answer.

Thanks
Jens