MSD Ignition 8987 Start & Step Engine Timing Retard Control

The Start and Step will easily connect to magnetic pickups and has a points input as well, plus it can work on 4, 6 or 8-cylinder engines.\nThe Start and Step also features a single stage of retard making it ideal for nitrous engines. This retard can easily be activated when the nitrous is turned on, or add a switch for a high speed retard. You can simply dial in 1°-15° with the rotary dial for quick adjustments.\nThis digitally controlled accessory allows you to select a 5°, 10°, 15° or 20° 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\nor when the key is released the timing returns to the set mechanical amount.