So with that thinking, intakes 2 thru 8 are different than 1? Seems we would need specs on every cylinder and check the CL of every cam lobe. Now that I think about it, since manufacturing error is one of the possible problems you're looking for when checking the centerline, why is not recommended to check EVERY intake CL? I take it that we are really only checking lobe geometry to the chain sprocket mounting and take for granted that the cam lobes themselves were machined correctly in relation to each other.