MSD 88364 Distributor Vacuum Advance

Compatible with most GM® HEI Distributors. This product is not created or sold by GM®. Quick easy components to lock out timing on HEI distributors.;<br><br>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.<br><br>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 any mechanical timing advance.<br><br>The vacuum advance block off kit bolts in place of the vacuum advance canister on a HEI distributor to neatly and effectively lock timing solid.<br><br>Both of these parts are standard equipment on the MSD Circle Track HEI distributor but will work on most HEI's.;

• 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