---Great low and mid-range torque ---Strongest from 1000-4500 RPM ---Bolt-in cams for 88 CID engines with stock compression ratios ---180 psi cranking compression; no need for compression releases ---Lower lift allows them to be bolted into stock 96"-106" '06 engines with stock valve springs ---Cams for '00-'06 Twin Cam are for use with stock splined drive gears; for installation on '99 Twin Cam motors you must purchase splined outer drive socket; S&S recommends that Andrews 4340 steel drive sprocket to be used. ---Made in the USA ---Notes ---Installer must check coil bind, valve to valve clearance and valve to piston clearance.
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