MSD 8680 Adjustable Timing Control for 4, 6 & 8-Cylinder Engines

The MSD 8680 Adjustable Timing Control puts you in command of your ignition timing without ever leaving the driver's seat. A dash-mounted control knob delivers easy, accurate timing adjustments of up to 15 degrees, letting you fine-tune performance on the fly to match changing driving conditions.

Key Features:

• Adjust ignition timing up to 15° directly from the driver's seat
• Dash-mounted control knob for convenient, precise adjustments
• Compatible with 4, 6, and 8-cylinder engines
• Plugs directly into MSD 5, 6, 7, 8, or 10 Series Ignition Controls
• Compensates for altitude changes, low-octane fuel, and heavy loads
• Can be configured to retard and advance timing up to 7.5° in each direction from a center baseline
• CARB-compliant — legal for use on emissions-controlled vehicles in all 50 states

Whether you're daily driving or hitting the track on weekends, the MSD 8680 delivers the flexibility to advance timing for maximum performance or retard it to prevent engine detonation and protect against knock. Increased fuel efficiency and improved throttle response are among the real-world benefits of dialing in the correct timing for every situation.

Note: Must be used with an MSD Ignition Control unit. Sold individually.