Originally posted by James Clay:
Because of the numerous part numbers and lack of information from BMW. It looks like the cam doctor can tell though...
It would seem to me that numerous part numbers would HELP identify illegal cams, not hinder the process. Lack of info from BMW should not be an issue. Many other companies, i.e. VW provide no cam specs in their workshop manuals. What makes this Group N cam so special?


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"Bad" Al Bell
ITC #3 Datsun 510
DC Region MARRS Series