Glad Drag gets to enjoy the car finally, great news!

In various projects over the years I have found internal oil passage leak issues before by pressure testing the system without cam or crank getting in the way/messing up line of sight. Have to think outside the box a little to plug the main and cam oil holes without the main components installed, but it can be very helpful to not have those parts in the way. Just throwing the idea out there in case something along those lines is suspected.

If it is something that will only open up when hot, detective work will for sure be much more difficult. Hope someone can figure it out.