| A1 is a standard "street" profile. This is fitted to most of the street engines since the 851. 916, 748, 996, ST4 etc.
The wilder cams are marked, for instance, T1 - 996SPS, G - corse or 431 - corse etc.
If the cams have no markings other than OA/VA etc, then the only way you'll find out is to measure them. |