389 cam
 

I'm trying to figure out what type of cam I have in my 389 GTO motor. Cam looks to be good shape but I'm not sure what type it is or the specs on it, all I can find on cam is some letters and numbers: CR 878
28-23-95
These are the only idenification I can find on cam. Do these numbers mean any thing? Do these numbers mean anything to anyone. I thought maybe it was a crane cam but I can't seem to match anything on the Crane site. Hope someone can help.