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The late-model crank requires external balance, yet it comes with the M-6316-A351, fully degreed, NHRA-legal, SFI-spec 18-1, neutral-balanced crankshaft dampener. The removable crankshaft weight (A) is the key to making it work. SVO’s M-6268-B429 full roller chain with a nine-position, multi-index cam sprocket drives the high-lift hydraulic cam. The assembly includes a mechanical fuel-pump eccentric (B).