BCOMP Cams 35-771-8 Xtreme XR280R-10 Roller Cam for Ford 351W Engines ReviewbP PP COMP Cams 35-771-8 Xtreme XR280R-10 Roller Cam for Ford 351W Engines PProduces Better Throttle ResponsePProduces Top Engine HorsepowerPDelivers Increased Engine VacuumP1 Year Limited WarrantyP