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 #12-234-2 Grind #XE256H-10. Duration @ 0.006": 256 / 268deg. Duration @ 0.050": 212/ 218deg. Max Lift w/ 1.5RR: .447" / .454". Lobe Separation: 110deg. Lobe ID#'s: 5441 / 5230. 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: 411 ft/lbs @ 3600 RPM. Max Power: 330 HP @ 4700 RPM. Manifold Vacuum: 18.5" Hg @ 800 RPM & 20" Hg @ 1000 RPM w/ no load.