MSD’s digital, single-channel, ignition tester lets you check your entire ignition system simply and effectively by producing a simulated trigger signal that fires the ignition just as if the engine were running. Follow along in this video to learn how to use the tester and verify your ignition is in tip-top shape.
Learn More:
https://www.holley.com/products/tools/ignition_tools_and_testers/parts/8998