Vacuum Advance Lockout for GM HEI - 88364 vacuum-pumps 2L/L4 1967 - 1970 Jeep

2L/L4 1967 - 1970 Jeep Jeepster 3

44612-AA020

74/8 V 1977 - 1978 Chevrolet K20 3

Year Make Model Submodel Engine Size 1984 - 1992 Ford Bronco 302/5 V8 1988 - 1992 Ford Bronco 351/5

Vacuum Advance Lockout for GM HEI - 88364 vacuum-pumps 2L/L4 1967 - 1970 JeepOverview: MSD offers two kits to make locking out mechanical and vacuum timing advance in HEI distributors an easy task for Circle track racers. No more welding a tac on the mechanical advance weights or trying to find a way to keep the vacuum advance from moving once the canister is removed. MSDs mechanical advance lockout plate replaces the mechanical advance weights and simply slides over the pins on the shaft and the advance assembly to eliminate