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 2.75 x 2.37 x 1.25 inch and simply connects between the distributor and the MSD ignition. Two rotary dials offer simple adjustments. Perfect for high compression nitrous cars. Product Features:Compatible w/4/6 Or 8 Cyl. EnginesAccepts Points/Amplifiers/Mag Pickup Trigger Signals
