COMP Cams 01-425-8 - CamShaft, CBVI XR300HR-10

COMP Cams Xtreme Energy XE300HR-10 Camshaft for Gen VI Big Block Chevy Hydraulic Roller - Xtreme Energy: Good for Pro Street and bracket racing. Needs 10.5:1+ compression, 3500+ stall, very good intake, headers with low gears. Hydraulic Roller - Xtreme Energy: Good for Pro Street and bracket racing. Needs 10.5:1+ compression, 3500+ stall, very good intake, headers with low gears.; 300/306 Advertised Duration, 248/254 Duration .050", .560"/.580" Lift, 110 Lobe Separation; Adjustable valve train required; Must use bronze tip fuel pump pushrod when using high pressure or high volume pump;