MSD 8428 HEI Weight & Spring Kit

MSD 8428 Distributor Advance Curve Kit for GM HEI; Springs, Weights, Bushings

MSD 8428 GM HEI Weight & Spring Kit For Street Fire HEI & Stock HEI Distributors

MSD 8428 HEI Weight & Spring Kit

MSD 8428 Distributor Advance Curve Kit for GM HEI; Springs, Weights, Bushings

8428 GM HEI Weight & Spring Kit

MSD Ignition 8428 GM HEI Weight And Spring Kit

MSD Ignition GM HEI Street Fire Mechanical Advance Kit - Part 8428