I didn't wire it into the gauge cluster, but instead to an indicator mild bar like shown beneath (once more temporarily). I wired from the ignition to + of The sunshine, then calculated 5.45V when grounded to chassis. When you've verified your electrical is looking alright, Test your ignition timing https://blacktop4ageforsale49360.elbloglibre.com/32463805/the-5-second-trick-for-4age-20v-blacktop