Im getting 19psi in the middle, by 6000rpm its down to 16psi and then its down to around 13.5psi at about 6500rpm. Probably showing why my max power is at 5,700rpm as the boost drops off. My power graph is very funny, from 5000rpm onwards you draw a straight line accross and it moves up and down 5rwkw if that.
Ive learnt that you dont rev this bugger, im upchanging just over 6000rpm which maybe a good thing. Wouldnt mind trying a bigger turbo to see if i get much more top end.
I have a copy of my boost curve on a spreadsheet, i'll post it up.