After spending all morning trying to make sense out of the wiring mess on the truck, I decided to pull the trigger on a new engine harness.
http://www.brotherstrucks.com/prodin...er=EH03680%2DH
I probably would not have done it, if it weren't for the fact that it is also ready to go for HEI. ( I am running HEI, newer internal regulator alternator and converting from idiot lights to guages.)