; Recurve your distributor for full spark advance at the optimum RPM; Three sets of advance springs allow you to adjust the rate of spark advance; Built-in stop prevents the adjustment screw from backing out like other designs; Weights and centerplates precision stamped with smooth edges eliminate erratic timing; Comes with complete installation instructions

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Information:

Recurve your distributor for full spark advance at the optimum RPM; Three sets of advance springs allow you to adjust the rate of spark advance; Built-in stop prevents the adjustment screw from backing out like other designs; Weights and centerplates precision stamped with smooth edges eliminate erratic timing; Comes with complete installation instructions.