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  • MM3 -XLCH and HD Flatheads

    For '57-'70 XL; K, 45 and 80 Flatheads – Stainless Steel base mounts solid to your cam cover.  Has auto advance, manual retard for starting. Since only the mag head and bearing-bronze ring on top move, no more leaks or shaking around with a stock 'advance' mount. Installs in 12 degree position increments (unlike stock 36 degree). Use with or without a battery.  Easily installed 2-piece design needs no other mounting hardware. Can use with handlebar control too, arm plate available separately.