This compact controller provides an adjustable start retard to help high compression engines crank over easily, plus has a single stage retard. The unit measures 2.75x 2.37x 1.25 and simply connects between the distributor and the MSD Ignition. Two rotary dials offer simple adjustments. MSD Start and Step Timing Retard Control 8987 Digitally ControlledEasily Set A Start Retard And S Step RetardImproves Cranking On Engines w/Locked Out TimingSingle Stage Of RetardAdjusted With Rotary DialsMust Be Used With MSD 6/7/8-Series IgnitionsConnects To Magnetic Pickups Or PointsWorks On 4/6/8 Cylinder EnginesPit Stop USAoffers MSD Ignition Start And Step Timing Retard Control 8987 at low everyday prices. Be sure to check out all of the products from MSD Ignition including MSD Ignition Parts and Accessories, MSD Ignition Timing Module Selectors.
Compatible with 4, 6 or 8-cylinder engines
Accepts points, amplifiers and mag pickup trigger signals
Must be used with an MSD Ignition Control
Perfect for high compression nitrous cars.