Valve train geometry

Your problem is the Crane rockers, they are and always have been the problem, see my post on the bottom of the page.
Here is a pic of the "new" Hughes rockers. This is the alignment with the valve on the seat. Guess who they are supposedly made by now? 20180808_160944.jpg
I have an order for a kit to correct this monstrosity to the best of my ability. I thought the customer was uninformed about who made the rockers, until I saw the pics. Talk about a step backwards.