Pressurized engine

[Scoot5869]

Recently I have had truck in shop fixing multiple items while I have down time.
2010 cm871 550 hp tuned by Rawze.
One of the items I replaced was the turbo again I would not recommend Hd turbo. Anyway
It was letting a significant amount of oil into the intake so I replaced it with a factory reman like I should have the last time.
Before i replaced it I could not get the truck to boost past 30 on hard pulls or hills anything pulling 80k. After the replacement i still seam to have to same issue. Actuator passed calibration cac had no leaks. I plugged off exhaust side of turbo an put pressure to the intake side. As I understand it doing that I should not have any leaks correct?
So when i put pressure to it 20psi I had air coming out of the hole I drilled in the crankcase filter and if I opened the oil cap from there as well. Those were the only places I had air coming from.

So I’m not sure what my problem is and if this is why I can’t get the boost any higher on hard pulls

I just replaced all the valve guide seals as well and everything looked fine there.
Any guidance would be appreciated