Adjustable Timing Contro

The MSD Ignition Adjustable Timing Control (MSD 8680) is a precision engine management tool designed for serious performance builders and tuners who demand real-time ignition curve optimization. This module is ideal for those working on carbureted big-blocks or street/strip hybrids, providing the ability to adjust ignition timing independently of traditional mechanical systems.

With a compact design and lightweight construction, the MSD 8680 can be easily mounted in various locations, such as under the dash or in the engine bay. The precision potentiometer adjustment mechanism allows for repeatable timing changes, enabling users to optimize combustion in modified engines. This product integrates seamlessly with MSD digital ignition boxes from the 6-series and later, ensuring effective performance tuning.

Builders working with MSD ignition systems will find this adjustable timing control module essential for maximizing horsepower while maintaining drivability across the RPM band. Its ability to decouple ignition timing from mechanical advance weights and vacuum modulators allows for independent control over initial and total advance, making it a critical tool for high-performance builds.