Proform Vacuum Advance Lock Out for GM HEI Distributors | 67022C

Proform 66946C HEI wire harness. Features harness and capacitor, replacement design, fits GM HEI distributors, ensures reliable electrical connection, sold as each.

Proform 141-796 distributor tune-up kit. Includes cap, coil, dust cover, hardware, module, rotor, vacuum advance, black finish, fits GM HEI distributors, ensures reliable ignition performance, sold...

Proform 141-685 distributor. Features magnetic pickup, locked vacuum advance, HEI style terminal, red finish, fits Chevy V8, ensures reliable ignition timing, sold as each.

Proform 141-686 distributor. Features magnetic pickup, locked vacuum advance, HEI style terminal, black finish, fits Chevy V8, ensures reliable ignition timing, sold as each.

Champ Pans distributor lockdown plate for GM HEI distributors with vacuum advance. Designed to lock out the vacuum advance mechanism, ensuring consistent timing in high-performance racing...