I've got some camshafts that I'm not sure what they are. They look like skunk2 but seller said that they were CTR(intake) and ITR(exhaust) camshafts. I know for sure that there not CTR/ITR cams is that they don't have any of the rings/cuts at the end of the cams. Seller is not sure either after I told him this. He said that he sent his head in to King Motorsports and this is what it came back with. Thats what if says on his paperwork too. So..... I was wondering if any of you guys can tell me how to tell the difference in the cams. Or how to just ID the cams if they are Skunk2.......the stages too if you know. Thanks.