Top Street Performance HEI Distributor Vacuum Advance Lock-Out

Optimize your HEI distributor's performance by eliminating unwanted vacuum advance with the Top Street Performance Vacuum Advance Lock-Out. This essential component is designed for enthusiasts who prefer a fixed ignition timing setup, ensuring consistent engine operation and preventing potential issues associated with fluctuating advance curves.

Key Features:

• Direct Fit: Engineered as a direct replacement for your existing HEI distributor's vacuum advance mechanism.
• Standard Rotation: Specifically designed for distributors with a standard (clockwise) rotation.
• Simple Installation: Easily blocks off the vacuum advance port without complex modifications.
• Durable Construction: Built to withstand the heat and vibration of the engine bay.
• Versatile Application: Suitable for both 6 and 8-cylinder engines equipped with HEI distributors.

If you're building a race car, a dedicated performance street machine, or simply prefer the predictability of manual timing control, this vacuum advance lock-out is the perfect solution. It ensures that your ignition timing remains precisely where you set it, leading to improved throttle response and predictable power delivery. Avoid the complexities and potential drawbacks of vacuum-controlled timing when it's not desired for your specific application. Upgrade your HEI distributor with this reliable and straightforward component from Top Street Performance.