HP GM Distributor w/ Vacuum Advance

The HP GM Distributor with Vacuum Advance (ALL 81216) is designed for builders and enthusiasts who are restoring or upgrading classic GM V8 engines. This component is essential for achieving precise ignition timing and optimizing the spark curve through vacuum assistance, which is critical for performance in both vintage muscle cars and modern street engines.

Engineered by ALLSTAR PERFORMANCE, this distributor acts as the command center for your ignition system, managing spark delivery across all cylinders. It features both mechanical and vacuum-advance mechanisms that dynamically adjust timing based on engine load and manifold vacuum conditions. This ensures improved fuel economy and cold-start characteristics while maintaining peak power delivery at high RPMs.

Ideal for street, restoration, hot rod, and classic muscle applications, the HP GM Distributor is compatible with both points-and-condenser and electronic ignition systems. Its robust construction and precision-machined internals guarantee consistent rotor phasing and minimal drift over time, making it a reliable choice for any engine builder.