MSD Vac. Adv. Lockout For GM HEI (Not 8365) 88364

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.

Features:

• Quick, efficient way to lock out timing on GM HEI distributors
• Lockout vacuum advance
• Easy install
• Works on most GM HEI distributors
• Perfect for racing applications

Quick easy components to lock out timing on GM HEI distributors.

Made in the USA!