cat c12 turbo spool

Attached is video with boost gauge. Watch gauge. Nothing is throwing any red flags at me, Motor is 445hp 2ks serial from factory. I have tuned for 500+ hp. In video im going uphill with scaled 73200. This winter im trying to switch up a few things. I have tried 2 different turbos and resorted back to stock due to turbo lag. So far stock spools the fastest. Im thinking i want to try pdi stage 1 turbo for cat c12. yes they have one. So anyhow, by looking at video and boost gauge, can anyone see where there might be an improvement or is spool time pretty much what you see is what you get and pdi will be waste of money. Need the torque down low all the time. its my local hauling truck
https://youtube.com/shorts/eyQi-MkG-hI?feature=share

 

i hear ya but i have 3 c13 friends locally. The one that owns 2 cant keep up with my tuned c12 at all and my other friend just deleted his twins last month for one single and got the power that it needed from the factory. Compounds are out of the question. However lester, i do appreciate all suggestions my friend.

 

Well lester, ill tell you what, ill look more into it. I have another buddy that said he can put me in touch of one of his guys that does cats and uses cat in his sled truck. So next month, ill reach out to him and see what i can come up with. Thank you