Looking for an economical way to enhance the spark output of your street rod or muscle car? The compact I6 Ignition Control is easy to install with breaker points or electronic triggers and delivers multi-strike, high-output sparks to improve your engine?s idle, throttle response and driveability. The I6 is an inductive ignition control that improves the spark output and enhances the current and dwell control of the coil resulting in higher spark energy ? up to 70% over OEM systems. From cranking speed through 2,000 RPM, there is a series of multi-strike sparks to enhance starting, idle and low speed cruising. The I6 also has a smooth rev limiter that is adjustable within 100 RPM increments. For the most output, it is recommended to run the FAST I91 Coil.