COMP Cams 08-601-8 - CamShaft, CS 291T HR-107 MT THUMPR

COMP Cams Mutha' Thumpr 291THR7 Camshaft for Small Block Chevrolet Carbureted Engines Originally Equipped with Hydraulic Roller Cams Hydraulic Roller - Mutha' Thumpr: High performance street/strip, needs 9:1 compression, 2500+ stall, intake, gears and headers, rough idle. Hydraulic Roller - Mutha' Thumpr: High performance street/strip, needs 9:1 compression, 2500+ stall, intake, gears and headers, rough idle.; 291/311 Advertised Duration, 235/249 Duration .050", .522"/.509" Lift, 107 Lobe Separation; 2200 to 5900 RPM range; Must use bronze tip fuel pump pushrod when using high pressure or high volume pump;