We did a bone stock '07 which made 250 and after tuning it made 270 - however - it is the ICS loaner car and I later discovered that the young lady we had lent it to had put 87 octane fuel in it LOL!
Honestly, I dont see many bone stock cars here.
Our dyno is very typical of any other Dyno Jet as far as power band does
BTW - there is no dip in the TQ - what you are seeing is the boost level being adjusted lower through that area of the power band so that in 6th gear the boost is not creeping higher.
The knock correction is linear and timing smooth and progressive throughout.