The figure on the cam card is the figure you use,its when the valve is closed.It would not be called the intake valve closing point if it was open any at all? Gatta give ya a hard time atleast ....after all the pay on this job sux!!!!
If the web site or cam card has a spec for valve events,they should list intake opening degrees ,intake closeing degrees/exaust closeing degrees,exaust opening degrees....this is exactly the degree of the cam rotation that those events occure.The .050 and all other specs are not closing or opening points ,they are for duration and lift caculations not a specific point in rotation.
Hope this helps!!