In what? What car are you installing it in? Dammit people we cannot imagine what you are working on. I don't have the gift of mental telepath, and Rusty cannot ever find his damn crystal ball.
1943 Supermarine Spitfires use twin magnetos, they don't NEED a hot wire
............and if you are swapping a hemi into a '28 Farmall, I have no idea what was done with the wiring......
