COMP Cams 11-771-8 Xtreme XR280R-10 Roller Cam for Big Block Chevy

Produces Better Throttle Response
Produces Top Engine Horsepower
Delivers Increased Engine Vacuum
1 Year Limited Warranty

"Xtreme Energy" Mechanical Roller Camshaft
Fit 396-454 cu.in big block Chervolet V8s
RPM Range: 2,500 to 6,500
Duration @ .050" lift: 242/248 (int/exh)
Best in street machines with 2800 stall converter, 10:1 or more compression with 3.73-3.90 rear gears.