So no AVCS on your motor. What block are you running? So 10cm HS, IWG or EWG? What are you going to use for injectors? I'm surprised you did not go rotated with your build. I had always planned to rotate but with all I currently have into the stock location set up we figured give the Dom 3.5XT-R/ 8cm a go with my EWG.
I basically had this complete mod list from above on the stock EJ255 with the VF48 and made great power on both 93 and E85, huge torque gains and top end with the EWG. I really like the KB Holy Header, they help fast spool and great flow. Dom advised me to stay with the 65mm intake as he will tune it with MAF/ Speed Density hybrid, so good drive-ability and good performance up top.
There is no dyno data on this turbo yet, Even Blouch has not posted up any data on it. I spent a bit of time discussing it with Mike and he said go with the 8cm HS because of my EWG set up. He said I won't loose much at all up top. l may have one of the first graphs up on this turbo. I psyched to see what it produces and like the more closely matched hot and cold side wheels of this turbo, it's similar to the GTX3576 and that looks to be making good power!
Good luck with your build!!