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 #12-230-2 Grind #XE250H-10. Duration @ 0.006": 250 / 260deg. Duration @ 0.050": 206 / 212deg. Max Lift w/ 1.5RR: .432" / .444". Lobe Separation: 110deg. Lobe ID#'s: 5440 / 5207. 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: 417 ft/lbs @ 3700 RPM. Max Power: 333 HP @ 4700 RPM. Manifold Vacuum: 19.5" Hg @ 800 RPM & 21" Hg @ 1000 RPM w/ no load.