New wiring for our ‘67 B’cuda

Bobacuda said

Mattax - I didn’t get a notice that you posted. I have just about finished under the hood (less NSS wire), then moving to the dash. When that harness is good to go, I will see what sketchy wiring my car original had for the NSS and reverse lights. I fully expect to run a new NSS wire, but I still have to figure the reverse lights and how to connect them with my automatic’s console & floor shifter.

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If you have a transmission (and you should) with a 3 pin NSS that is "it." If you don't have a pigtail, you can get them from NAPA and other places. Center pin runs up over the transmission up the firewall and routes to one of the push-on connectors on your starter relay.
The Two outer pins are reverse switch. Route either outer pin to switched power, and the remaining one back to the reverse lamps. Normally that wire comes up the firewall, through the bulkhead connector, and over to the left kick panel connector, and on back to the reverse lamps. No idea how "whoever" harness routes that.