Here is my plan I have a 2.6 that should be ready in the next week or so I plan to assemble the engine on a stand and seal both sides of the gaskets to see if that will help. Asking 2 bolts to hold a valve cover down never did seem like a solid plan to me. It's amazing they were so far ahead in so many areas on these trucks and they come up with a 2 bolt valve cover system.