Racing Power Co. R4933 HEI Distributor Advance Curve Kit

The Racing Power Company R4933 HEI Advance Curve Kit provides engine tuners with the essential components needed to custom-tune the mechanical advance curve in HEI (High Energy Ignition) distributors. This kit allows you to precisely dial in ignition timing for optimal performance, whether you're building a street machine or a race engine.

Key Features:

• Complete assortment of advance springs and bushings for HEI distributors
• Enables custom tuning of mechanical advance curves for specific engine combinations
• Allows optimization of ignition timing for improved throttle response and performance
• Compatible with GM HEI and HEI-style aftermarket distributors
• Includes multiple spring rates to adjust advance speed and total timing
• Essential for performance engine builds and race applications

Proper advance curve tuning ensures your engine achieves peak power while avoiding detonation. This kit gives you the flexibility to match ignition advance to your engine's specific needs, cam profile, and intended use. A must-have for serious engine builders and performance enthusiasts working with HEI ignition systems.