This adjustable MSD Start and Step Retard Controller is made for use with 4, 6, or 8-cylinder high compression engines with an MSD Ignition control. This compact unit connects between the distributor and the Ignition control and accepts points, amplifiers and mag pickup trigger signals for an easier start up.
Step retard can be adjusted 1°-15° in single incrementsStart retard is adjustable from 5°, 10°, 15°, 20°
Measures 2.75" x 2.37" x 1.25"
Note: Not legal for sale or use on pollution-controlled vehicles.