New guy here, looking for a bit of insight for my new project. Trying to stay as "low cost" as possible, so the stage 1 ecus look like the way to go. Since the car was originally a 4 cyl, I would imagine the stage 1b (fuel and ign) would be the least painfull way to go. Assuming this is correct, what (if anything) will I need to keep intact from the cars wiring? What else am I missing? Thanks guys... can't wait to get this project underway.