The appalling attitude you displayed in the above post is the reason why this thread has been closed and you have been issued with a warning.
In future, pull your head in.
Your correct, however as I understand it the workshop in question has already had to rebuilt it for a second time due to valve train issues after the initial build.
Your not having much luck with this engine mate
If it were me, I would be taking it to another workshop and sending the original engine builder the bill for any repairs that are needed.