284/280 Duration, 12.50mm/12.00mm Lift. High lift drag racing camshafts to suit engines running up to 30lb boost and 9500 RPM with our recommended valve spring
276/272 Duration, 12.50mm/12.00mm Lift. High lift track racing camshafts to suit engines running up to 30lb boost and 9000 RPM with our recommended valve spring