[davepl]

My headlights are HID and have transformers, like your relays, so a lot of my draw is up front and not in the cab itself too.

In my other vehicle when I wired up my LS motor I ran it as a 3-wire but I'm still tempted to cut the harness and run the voltage sense line to the factory location in the car, not just to the ECM harness. But it all works now so not going to mess with it.