Under hood wiring when going from slant 6 to Mopar Performance Shop

70Duster440 said
Oh yeah, sorry - in my haste I forgot about the earlier single field alternator vs 70 and up dual field, and voltage regulators. Here's some more info: The Early MoPar (60’s and 70’s) Wiring and How It Can Be Upgraded

If it is easier for you I would be glad to do a private message and give you my phone number up to you whatever is the most convenient