I know I have better performing logs somewhere. and the one did 20psi at 2950rpm.
But here's the summary of this old one. I'm sure if the boost controller wasn't trying to open the wastegates, there wouldn't be the boost taper around the 20psi mark.

2480=0psi
2847= 10.5ish
3125=18.3

2500=0psi
2855=10psi
3136= 19.8psi

Stock.