But why bother to do that? An early cam profile could be ground into any late cam core - Lon www.corvairunderground.com N2VZD@aol.com wrote: >has anyone ever tried to modify an early cam to fit a 164 engine? such as >grinding a chamfer on the lobes with a dremel? wonder what a 3832566 63 turbo >cam would do in a late engine....(just 2 carbs on 140 heads) just dreaming >again. > regards tim colson