Isuzu 4BD1T/2T
We're finishing the installation of a NOS 4bd1 (ass'y 12/'79) into '74 GMC 4x4. The last wiring hookup is to the alternator/external voltage regulator. I haven't been able to find a diagram in any of my manuals or search in the forum. The regulator that came with the re-power unit does not...