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The COMP Cams billet keyway timing set for .010" undersized 1965–1988 Ford Small Block (289, 302, 351W) pairs precision steel billet gears with a prestretched, heat-treated double roller chain for durability. The 9-keyway crank sprocket offers 2° incremental timing adjustments and up to an 8° range, providing a tunable timing solution for small-block Ford rebuilds and performance upgrades.
COMP Cams Billet Timing Set-.010 FS 9- Keyway Adjustable
