COMPU-FIRE Replacement Tachometer Adapter for Elite 1 Ignition Harley Davidson 51105

All electronics mounted in the nose cone (timing cover), Feature selectable advance curves (eight advance curves in either dual- or single-fire operation), Adjustable rpm limiter (eight rpm limits), Dual-range VOES operation, Accu-Ray light for easy installation and check system, Made in the U.S.A., Not for fuel-injected models