Distributor Advance Lockouts

When you're tuning a race engine, vacuum advance becomes a liability—it introduces timing inconsistency at the exact moment you need the most precise control. The MSD Vacuum Advance Lockout Kit eliminates this variable by physically disabling the advance...

In circle track racing, engine timing is everything—and mechanical advance can work against you when you need absolute control over ignition curve. The MSD Mechanical Advance Lockout eliminates timing drift from centrifugal weights, letting you lock in a...

If you're running a GM HEI distributor on the track or in high-boost applications, uncontrolled spark advance can cost you consistency, reliability, and power. The Fast Electronics Advance Lockout Kit locks your ignition timing at a fixed point,...

If you're running a carbureted GM HEI distributor setup and want predictable, consistent ignition timing during high-RPM pulls, you need vacuum advance lockout control. This Proform plate eliminates unwanted vacuum advance fluctuations that can cause...

When you're tuning a high-performance engine, vacuum advance becomes a liability—it'll pull your ignition timing around unpredictably and kill consistency under boost or heavy throttle. The MSD Vacuum Advance Lockout 8468 locks out this mechanism...

Eliminating vacuum advance during high-performance driving ensures consistent ignition timing and prevents detonation issues that compromise engine reliability. This lockout is essential for tuned engines running aggressive ignition curves, carbureted...

If you're running a Pertronix Flamethrower distributor on your race car or high-performance build, locking out the spark advance curve gives you precise ignition timing control—critical for tuning consistency and peak power delivery. This kit eliminates...