As posted it was a stock AFM, i can vouch for this as i was there
98 octane.
Drove the car myself and it pulls very hard & still remains responsive.
Dyno is not happy, it is a 2008 model Dyno and has been calibrated recently, seems every time someone makes big power that people find hard to believe then the dyno must be happy.
Bas made similar power with this exact turbo on Trent's dyno.
As Ash stated earlier Mat tuned past the stock AFM and bumped up fuel pressure, not the safest thing to do but injectors will be upgraded soon.
Mat is not guessing when he tunes, he tunes very well and has proved this with several other cars. We managed over 250kw on 17psi (GT3071r) with my SR, no cams and tune is fairly safe. I never get over 20 knock even at the track and my AFR's are spot on (full power, cruise, and idle), hopefully Mat will jump in soon if anyone has any other questions Mat??