Boost Timing Master for MSD Ignition

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The Boost Timing Masters allow you to adjust the amount of ignition retard from 1° per pound of boost to 3° per pound via a control knob that you mount on the dashboard. This way y ou can make adjustments on the fly to prevent detonation as fuel quality or altitude and air quality changes up to a maximum of 15° retard. You can also set a boost pressure point to start the retard. There is a boost pressure port to connect to your manifold and the BTM wires easily to the MSD Ignition Control. Show more