MSD- 8975 Multi-Retard, Digital Controlled
MSD- 8970 Three Stage Retard Control
MSD- 8984 Starter Saver w/Signal Stabilizer
MSD- 8762 Boost Timing Master for use with MSD Ignition Control
MSD- 8987 Start & Step Timing Control
MSD- 8680 Adjustable Timing Control, MSD 5, 6, 7