Seller notes

Moroso Distributor Mechanical Advance 72300; Advance Curve Kit for 74-87 GM HEIDistributor Mechanical Advance Model or Series: Advance Curve KitYear: 1974-1987Make: GMIncludes Weights: YesIncludes Bushings: YesSpring Quantity: 6 SpringNotes: Fits all HEI distributors except computer controlled onesQuantity: Sold As Kit Recurve your distributor for full spark advance at the optimum RPMThree sets of advance springs allow you to adjust the rate of spark advanceWeights and centerplates precision sta...

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