XR270HR-10, Camshaft Part#12-422-8 Dyno Sheet Camshaft dyno sheets   COMP Cams, Inc.® • 3406 Democrat Road • Memphis • TN • 38118 • US 1-800-999-0853

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Dyno Results Camshaft Part # 12-422-8 Designation XR270HR-10 Duration @ 0.006" 270 / 276 Duration @ 0.050" 218 / 224 Max Lift w/ 1.5RR .495 / .502 Lobe Separation 110 Lobe ID#'s 3313 / 3314 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 415 ft*lbs @ 3800 RPM Max Power 342 HP @ 5100 RPM Manifold Vacuum 15" Hg @ 800 RPM & 16.5" Hg @ 1000 RPM w/ no load.

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