COMP Cams 11-601-4 - CamShaft, CB 287T H-107 MT THUMPR

COMP Cams Mutha' Thumpr 287TH7 Camshaft for Big Block Chevy Hydraulic - Mutha' Thumpr: High performance street/strip, needs 9:1 compression, 2500+ stall, intake, gears and headers, rough idle. Hydraulic - Mutha' Thumpr: High performance street/strip, needs 9:1 compression, 2500+ stall, intake, gears and headers, rough idle.; 287/304 Advertised Duration, 235/249 Duration .050", .510"/.495" Lift, 107 Lobe Separation; Valve spring upgrade required