How to determining what cam is in a motor

Thanks everyone for the replies.
I was thinking that if I removed the valve cover and put a dial indicator on the intake valve it could give me a lift reading, if this is how it is measured. That is why I came here to ask the question.

Krazykuda;
Due to it just having headers, I don't think their will be any whispering. lol Like the comment.
I haven't degreed a cam in a long, long, long time but doesn't it just show duration and lobe seperation? I don't remember.