D16y7 to y8 Intake Manifold Swap Problems: High idle, Surging idle, Air Injection Hole Issues

Don’t bother trying to do this swap after research it seems like everyone just has issues with it so I’d say it’s not worth it. The air injection holes I think were causing my issue but I went back to my y7 manifold so that I can keep driving the car again. Waste of time and money in my opinion. If anyone has any ideas of what happened to my car then let me know maybe I can make the y8 manifold work but until then I’m running the y7 manifold cause it actually works unlike the y8 manifold.