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Mallory HyFire 6-AL digital CD ignition features high output multi-spark ignition system. Digital performance at analog prices. Built-in easy-to-adjust digital rev limiter - 4,500 to 12,000 RPM - no chips required! Latest microprocessor-controlled circuitry. Easy to install. Lightweight aluminum housing - maximum heat transfer. More performance and lower power draw. Quicker acceleration and throttle response. Works with points, OEM or aftermarket electronic ignition, or magnetic crank triggers (exc. hall effect).