MSD 6-Btm Boost Timing Master Universal Manual Boost-Referenced Timing Control MSD Ignition

Adjustable Timing Control The MSD Adjustable Timing Control Puts You In Control Of Your Ignition Timing From The Driver'S Seat MSD Ignition

Boost Timing Master For Use With MSD Ignition Control Perfect For Roots Blowers Looking For Basic Timing Retard Based On Boost. Includes Dash Mounted Retard Knob MSD Ignition