The Speedmaster PCE369.1002 Vacuum Advance Lockout is designed specifically for 6000 Series HEI distributors, allowing you to eliminate vacuum advance and lock ignition timing for more consistent, repeatable performance. This is a straightforward bolt-on solution ideal for performance builds where precise timing control is a priority.
By blocking vacuum advance, this lockout helps maintain stable ignition timing under varying engine loads and throttle conditions, making it a popular choice for racing and high-performance street applications paired with compatible Speedmaster 6000 Series HEI distributors.
MPNPCE369.1002
UPC840136546283
