S&S Cycle Camshaft Kit - MR130 Chain Drive - Twin Cam '99-'06 (Except '06 Dyna)174979774 Product Description Bolt in camshaft for 103 engines with stock 8. 7: 1 compression ratio up to 10. 5: 1 compression ratio Works with stock, un ported heads, but is great for S&S CNC ported heads More power across rpm range best results from 2500 rpm 5500 rpm Made in the USA Notes Installer must check coil bind, valve to valve clearance and valve to piston clearance. A hydraulic press and other professional level tools are required for
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