Proform GM HEI Distributor Advance Lockouts 67022C. Vacuum Advance, Vacuum Lock Out, HEI, GM, Each. These Proform GM HEI distributor advance lockouts are designed to easily remove the vacuum advance chamber from Proform distributors that use a clockwise rotation.
![Ford 351W Windsor 8020 Series Pro Billet Ready to Run Distributor Vacuum [Red]](https://images.buynet.work/thumb.php?i=335269955&s=240)
![Chevy SBC 350 BBC 454 8000 Series Pro Billet Distributor Vacuum [Red Screw-on]](https://images.buynet.work/thumb.php?i=341166543&s=240)