Electronic Ignition Connection

For the regulator you only need one new wire

Remove the old regulator, hook the blue in the connector to the blue in the harness, and green to green. Mount it and make certain it's grounded, IE star lock washers.

Run one new wire to the second field terminal (you do know you need a 70 or later alternator?) and run that up and splice it into the blue "ignition run" wire feeding the ballast, which is same as feeding the blue to the regulator