508 or 509 Purple Shaft cam

I've been trying to find the specs on the Mopar Performance Purple Shaft Cam for a smallblock. I found specs on a 508 cam but I thought they made a 509 for the smallblock and I can't find anything out there on it. Can anyone help me out here?
Thanks,
Frank

its a 508 on a 108 lobe sep.... i just bought one a buddy had sittin on a shelf since he bought it new from DC back in 1980... i have the original cam specs i'll post a pic of it in a day or so.....:burnout: