On petrol? As said earlier, you're really boost limited on 98, WHICH HE IS ON ATM!
Give the bloke a chance to get it drunk and turn the wick up.
I can't see a smaller turbo on 98 getting close to the 400 mark.
Far too many guys just look at the peak number. I'm sure if guys got in it and drove the thing they would get out pretty impressed. Midrange grunt > topend. Keep the top end for pissing in your mates pockets in the pub.