COMP Cams 34-236-4 - CamShaft, FF XM 270H-12

COMP Cams Xtreme Marine XM270H-12 Camshaft for 429 460 Big Block Ford Hydraulic - Xtreme Marine: Strong mid-range with good throttle response, great for small blower, noticeable idle. Hydraulic - Xtreme Marine: Strong mid-range with good throttle response, great for small blower, noticeable idle.; 270/286 Advertised Duration, 226/236 Duration .050", .554"/.557" Lift, 112 Lobe Separation; Valve spring upgrade required