You are starting to sway me Nismoid with your -9's theory. Lean on them enough, E85 (or race fuel on the track) with built engine and appropriate headwork... 350kW, maybe? Full boost 3.5k and rev to 8k only for reliability, less stress on every other part of the drivetrain...
Anyway, don't stress and do something silly, take it to your tuner and tell him what is on your mind. Ask dumb questions otherwise you won't learn.