Cam degree.

you are chasing your tail trying to dial by the valve opening/closings because the openings and closings are very vague. It's fine to rough check the cam grind, but you want to dial by your intake centerline.
I'm using the instructions that came with the cam. When you specify "centerline," are you referring to the "installed center line" noted at the top of my cam card?
Norm

cam card.jpg