I built my own connection cable using an old 9 pin computer cord and cutting one end off exposing the wires and isolating the 3 wires the system uses . I used a diagram from one of the online forums. A ground and an incoming and outgoing wire. Thanks for all the help. I will let you know how it works. If it gives me too much trouble I will take the old Commander 950 system off and install a new intake and run a carb or go with a Holley Sniper efi system.
I have had a new a aluminum radiator installed. The turn signals are fixed and the heat is working, it took tons of work purging the air from the heater core. Once I get the engine running well it will be time to drive the wheels off of this GT40 replica because that is what I bought it for. I encourage everyone to get out and drive your special cars all you can.