DD15 560hp boost psi

I just got my DD15 tuned to 560 and my question is how much boost do y’all normally make going up hills, under a load etc?

At factory hp of 505 I was pushing 32 psi but now it gets as high as 37 psi at times.

Also does anyone know how much boost these turbos can handle?

 

It’s Tuned by a fella who has worked with Detroit for years but no not by specifically by Detroit their self..

It’s been tuned for a couple of months now; I go from Kentucky to Alabama back to Kentucky every night so I go up and down a lot of hills and mountains and she doesn’t get hot or anything like that. We keep inspecting oil and filters too to be safe.. but in 7-8-9 and 10th gear the boost at WOT on a pull can go up to 36-37ibs maybe higher idk but gears 1-2-3-4-5 and 6th boost is perfect 32 or below so because I’m a worry wart I’m constantly watching the boost gauge to keep it below 33-34ibs. Also if I may add we just put on a new turbo, air to air, charge pipe etc on too.

I’m just wondering what is “too much” for these turbos?