PROFORM 67022C Vacuum Advance Lockout Plate for GM HEI Distributors

Restore precise ignition control with the PROFORM 67022C Vacuum Advance Lockout Plate, designed for GM HEI distributors. This replacement component blocks vacuum advance operation, helping support a consistent ignition advance curve for applications where mechanical advance tuning is preferred.

Manufactured from durable plastic, the PROFORM 67022C is designed for straightforward installation in compatible GM HEI distributor assemblies. Its application-specific design helps provide a clean fit and reliable function when eliminating vacuum advance from the ignition system.

Use this advance lockout plate when setting up a performance-oriented ignition system, tuning a custom advance curve, or replacing a worn or missing lockout component. Verify compatibility with your distributor before installation. The PROFORM 67022C is sold individually and is intended for automotive ignition applications.

Features:

• Application: Designed for GM HEI distributors
• Function: Locks out vacuum advance operation
• Material: Durable plastic construction
• Installation: Designed for direct replacement in compatible distributor assemblies
• Quantity: Sold individually