This kit includes five, plug-in retard modules for use in MSD timing controls and ignition boxes with built in timing control.

The kit comes with a 16°, 17°, 18°, 19°, and 20° retard module.
This kit includes five, plug-in retard modules for use in MSD timing controls and ignition boxes with built in timing control.

The kit comes with a 16°, 17°, 18°, 19°, and 20° retard module.