MSD 6421 6AL-2 Ignition Box Digital w/ Built-In 2 Step SBC BBC SBF Chevy Ford alternators-generators-and-hardware 9 V8 1981 - 1988

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MSD 6421 6AL-2 Ignition Box Digital w/ Built-In 2 Step SBC BBC SBF Chevy Ford alternators-generators-and-hardware 9 V8 1981 - 1988Overview: MSD is excited to announce the next generation of 6 Series ignition controls the 6AL 2! The ignition control combines a new housing, new digital controls and more power in a sleek package. Inside the new cast aluminum housing you'll find an advanced micro controller that manages the built in two step rev limiter. The spark output of the new box has been turned up to 535 volts of primary voltage with spark energy reaching up to 135