I been hunting for my boost leak and I can hear it under the intake manifold. I found I can buy a new GM one for 120 dollars with all the gaskets and seals so I did that. I installed the map sensor and air sensor this morning by increasing the hole opening size to accommodate them. I also decided to get a bigger intercooler while I’m at it. After I get the boost issue resolved I’ll install it in place of the current one.