COMP Cams XR276HR-10 Hydraulic Roller Camshaft for Chevy Small Block 356ci Performance Upgrade

Xtreme Energy 224/230 Hydraulic Roller Cam for Chevy Small Block. Very strong torque with excellent mileage and a smooth idle. Xtreme Energy Cams bridge the gap between Magnum street cams and race only cams. Xtreme Energy Cams provide increased torque, vacuum, response, and power while still providing quiet operation of the valve train and the durability required in daily driven vehicles. Xtreme Energy Benefits:Quicker opening lobe profiles deliver increased responsiveness & more area under the lift curve. More vacuum allows a step up in duration for greater performance. Best seller. excellent all around performance in street carbureted applications. Important Considerations: Works best with COMP Cams roller rockers and matched valve springs. Requires other performance parts (intake manifold, headers, etc.) for best performance. Camshaft Part #12-423-8 Grind #XR276HR-10. Duration @ 0.006": 276/ 282deg. Duration @ 0.050": 224/ 230deg. Max Lift w/ 1.5RR: .502" / .510". Lobe Separation: 110deg Lobe ID#'s: 3314 / 3315. Intake Centerline:106deg. Engine Type: Chevrolet 350 Small Block. Bore: 4.040". Stroke: 3.480". Displacement: 356ci. Compression: 9.25:1. Heads: Dart S/R. Intake: Edelbrock performer. Carburetor: Holley #3310 Vac. Sec. Exhaust: 1 5/8" Headers. Max Torque: 427 ft/lbs @ 3700 RPM. Max Power: 373 HP @ 5200 RPM. Manifold Vacuum: 12" Hg @ 800 RPM & 14" Hg @ 1000 RPM w/ no load.
High performance street machines, 2000+ stall, gears, choppy idle.