Kit includes ignition module, single-fire coil, 8.5mm spark plug wires and instructions Two advance curve families with adjustable advance curves to accommodate stock to wild engine modifications Unit has four rotary switches for adjusting timing, single/dual fire, rpm limit and two LED indicator lights Digitally set rpm limit (in 100 rpm steps); selectable single- or dual-fire mode Selectable multi-spark mode for quick starting and smooth cruising Coil outputs protected against short circuits Kit uses the tachometer wire for the PC-link and comes with a connector Made in the U.S.A. Not for fuel-injected models. IGNITION EXT 90-94EVO EX