Chevy SBC 350 Hydraulic Roller Camshaft 248 Int. 254 Exh. Duration and excessive emissions

and excessive emissions

and you can choose between plain polished

the tip of the valve stem is subjected to a tremendous pounding

these cams provide better throttle response and more top-end horsepower than equivalent cams from other manufacturers

Holley Performance Products and similar intakesOur Fuel Rail Kits include what is shown in the image

Chevy SBC 350 Hydraulic Roller Camshaft 248 Int. 254 Exh. Duration and excessive emissionsSpeedmaster camshafts are built to take advantage of the latest cam technology, to provide maximum performance. Whether your use is off roading, towing, or street performance, there is a Speedmaster cam available for you. By using an aggressive lobe profile, these cams provide better throttle response and more top end horsepower than equivalent cams from other manufacturers, while delivering increased engine vacuum.