Not everyone here runs a Twin Cam. I know; that's not exactly news. Be that as it may, S&S Cycle has your Shovelhead or Evolution covered in the ignition department. Install an HI-4N Ignition Kit from S&S for reduced vibration, improved heat dissipation and increased reliability. Featuring a one-piece, machined aluminum housing, this kit’s module houses both single and dual-fire functions with an improved kick start algorithm design. Make adjustments to mode, advance rate and rev limit with BCD switches. Includes Crane Cams single-fire coil and plug wires. Made in the USA for a variety of 1970-1999 Harley-Davidson Big Twin models. For more information, you can visit the company website.