Strong torque, good mileage, stock to mildly modified combinations.
Camshaft Part #12-408-8 Grind #XR258HR-10 Duration @ 0.006": 258 / 264deg. Duration @ 0.050": 206 / 212deg Max Lift w/ 1.5RR: .480" / .487" Lobe Separation: 110deg. Lobe ID#'s: 3311 / 3312 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: 413 ft/lbs @ 3700 RPM. Max Power: 325 HP @ 4400 RPM. Manifold Vacuum: 17" Hg @ 800 RPM & 18" Hg @ 1000 RPM w/ no load.
Xtreme Energy 206/212 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.
