MSD Lockout Kit for GM OE HEI Vac. Advance 91930079 These bolts are available with

These bolts are available with either hex or 12-point heads / and washers are included

3/4" of adjustment for different deck heights

This laterally ribbed webbing works perfectly with our hardware and adjusters to prevent webbing creep and far exceeds strength requirements for all forms of racing

Heavy Duty aluminum frame with scuff-resistant sides

MSD Lockout Kit for GM OE HEI Vac. Advance 91930079 These bolts are available withWill 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