This digitally controlled accessory allows you to select a 5 Degree, 10 Degree, 15 Degree or 20 Degree of retard while the engine is cranking. By pulling the timing back during cranking the pressure being applied to the starter, flywheel and the rotating assembly of the engine is lessened so the engine will start easier. Once the engine starts

Product Features:

• Compatible with 4, 6 or 8-cylinder engines
• Accepts points, amplifiers and mag pickup trigger signals