MSD Lockout Kit for GM OE HEI Vac. Advance Rocker Cover Hold Down Tabs Black Box Surge Tanks Are

Black Box Surge Tanks Are Held in Place by Safety Foam Baffling

No RPM Modules Are Supplied

Note: this product has been granted a California Air Resources Board (CARB) exemption

In top racing series like Formula 1 and NASCAR

MSD Lockout Kit for GM OE HEI Vac. Advance Rocker Cover Hold Down Tabs Black Box Surge Tanks AreWill not work on MSD Pro Billet HEI PN 8365 or 83653. Lockout vacuum advance Easy install Works on most GM HEI distributors Perfect for racing applications Both of these parts are standard equipment on the MSD Circle Track HEI distributor but will work on most GM HEI's. Product Description: Spark Advance Lockout Vacuum Advance Plastic Black MSD GM OE HEI Distributor Sold Individually Racers never stop experimenting as they search for every way to