Cam identification how-to??

Thanks for the input guys! I really appreciate it. Unfortunately, I don't have a solid lifter at my disposal. I do have a degree wheel though. If I know it's a MP purple shaft cam though, can't I just get the lift # to figure out which one it is? I'm not interested in after rocker lifts. I just want to know what cam is in it.

Is there enough room to put the dial indicator directly through the holes in the lifter valley onto the cam lobe? Would this damage the cam?

Thanks again guys!