Introducing a perfect ignition combination for racing and high performance applications. The HYFIRE-IVa Electronic Ignition Controls use the same state of the art technology that is used in the design of the HYFIRE-VII Electronic Ignition Controls. The capacitive discharge design gives stable, uniform output and spark duration to ensure complete ignition of the air/fuel mixture throughout the RPM range with no drop in output at higher rpm levels while also providing a strong spark at low speed for easy starting. The HYFIRE-IVa Electronic Ignition Control may be triggered from points, Mallory Electronic Ignition Distributor (all models), original equipment electronic ignition amplifier, magnetic pickup distributor, or crank trigger. The HYFIRE Electronic Ignition Controls are also an excellent choice to use with the Mallory Electronic Advance Computer, the Mallory High Speed Retard, and the Mallory Remote Timing Control. While the HYFIRE Electronic Ignition Controls will work with most stock original equipment ignition coils, for best results always use a Mallory PROMASTER Coil #650-29440, #650-29625, or Mallory Chrome Electronic Ignition Coil #650-29216. Mallory has incorporated in the HYFIRE Electronic Ignition Controls a limp back feature. A special harness has been supplied to enable the user to switchback to standard ignition. 50-state legal via E.O.#D-70-34.
Fits: Universal - 8, 6 (includes semi-even or odd- fire V6), or 4 cylinder.