Vacuum Advance Lockout for GM HEI - 88364 engine-accessory-kits 1 L6 1970 Pontiac Tempest

1 L6 1970 Pontiac Tempest Base 350/5

7 L V8 2014 - 2017 Ram 2500 Laramie 345/5

7 L V6 2006 - 2007 Dodge Charger Base 167/2

Year Make Model Submodel Engine Size 1965 - 1969 Chevrolet Impala 5

Year Make Model Submodel Engine Size 2002 - 2003 Jeep Liberty

Vacuum Advance Lockout for GM HEI - 88364 engine-accessory-kits 1 L6 1970 Pontiac TempestOverview: 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