I don't know anything about the crow cam, perhaps a link would help people know exactly what type of cam you are on about (full race, 1/2 race or is it stage 1, stage 2 etc?)
I know antrx offers a cam regrind service, but once again I don't know what the end results were.
perhaps a search might turn up something?
If you end up going ahead with it I'd like to know what you think of it.