MSD Distributor Mechanical Advance 8428; Advance Kit for GM HEI (non-computer)

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

MSD Advance Kits For Street Fire HEI & Stock HEI Distributors - 8428 (NEW)

8428 GM HEI Weight & Spring Kit

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

MSD 8468 MSD Ignition Distributor Vacuum Advance Lockout-NEW

MSD Ignition 8428 Weight & Spring Kit for GM HEI

MSD GM HEI Street Fire Advanve Kit 8428