COMP Cams 12-268-4 S/B Chevy Vacuum Rule Hydraulic Cam, 1800-5800 RPM
Chevy Small Block V8, Hydraulic Flat Tappet Camshaft Type, 1800-5800 RPM Range, Steel
There are many things that effect vacuum. Camshaft lobe separation, lifter style, intake manifold, piston rings, compression ratio and overall valve and engine condition. Due to many and varied engine combinations, Speedway Motors offers no warranty on camshaft and or lifters for either performance, vacuum or longevity.
Must be used with break-in oil additive (sold separately).
Item DetailsFor use with Rhoads Hydraulic Lifters
Vacuum Rule Cam Chart (GIF)
282-122684 Specs (PDF)
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