Dyno Results Camshaft Part # 12-412-8 Designation XR264HR-10 Duration @ 0.006" 264 / 270 Duration @ 0.050" 212 / 218 Max Lift w/ 1.5RR 487 / .495 Lobe Separation 110 Lobe ID#'s 3312 / 3313 Intake Centerline 106 Engine Type Chevrolet 350 Small Block Bore 4.040" Stroke 3.480" Displacement 356 Compression 9.25:1 Heads Dart S/R Intake Edelbrock Performer Carburetor Holley #3310 Vac. Sec. Exhaust 1 5/8" Headers Max Torque 421 ft*lbs @ 4000 RPM Max Power 335 HP @ 4900 RPM Manifold Vacuum 15.5" Hg @ 800 RPM & 17" Hg @ 1000 RPM w/ no load.

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