The anit surge seems to make a lot less power then the non ported one? Or am i the only one thinking this? Response etc sounds the same, just down a bit on power?
I have a T67 on mine, you need to fabricate a new pipe to go to the throttle body, you cant follow the same path over the top of the fan and across as the intake of the turbo is in the way, and no way will a return flow work, you will need to go a normal style intercooler layout with the cold side coming out under the battery.There is then height problems to the bonnet as R34's have the factory coolant bleeder right where you want to run the piping to keep it low, R33's dont have this, i removed the bleeder and the piping just fits.
The intake on the turbo is also very close to the loop of the power steering hose, you need a very tight bend. Because of this and the length of the intake piping putting the AFM in the piping is better to avoid reversion.