A pair of calipers will be incredibly handy here. Just measure the base circle, then measure lobe lift, subtract the difference and you've got your lift. If any two lobes side by side are identical then you know it's the hotcam.

Also, this thread is 8 years old.

 

Hopefully he figured it out by now then

 

Haha....oops!! I didn't even pay attention to that.....

Here allow me....