Intake Fitment

Dry fit tight. stick feeler gauges in the passenger side rear corner. Whatever that number is have the machine shop take it off of both sides, but they will need to leave that corner as the last part to get surfaces to fix the angle. Call it an offset cut.
Then stack gaskets to make up the space.
I got in a hurry when my engine was on the dyno.
I had a huge vacuum leak on Super warped tunnel ram from hours of welding after I surfaced it, I found about a .030 gap in the same spot as yours. I will fix it as a mentioned above.
I was able to make the leak go away with right stuff sealer but that was the wrong way lol.