Spark Advance Lockout - Mechanical Advance - Aluminum - Natural - MSD Circle Track HEI Distributor - Each

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Mechanical Advance Lockout, for MSD, Circle Track HEI, Each

MSD mechanical advance lockouts replace mechanical advance weights. They simply slide over the pins on the shaft and advance assembly to eliminate any mechanical timing advance. Designed to work on most MSD Circle Track HEI distributors, they offer an easily installed solution for locking out—no more welding a tac on the mechanical advance weights. Lock out timing on your distributor with MSD lockouts.