Will I make it over the 300 hp hump with the GTiR T28?

Ive searched every forum for dyno sheets and numbers/ set ups for a GTiR T28 setup but to no avail. I know it is similar to the S15 T28,that it flows a little more up top and spools slower (non-ball bearing) but no one has numbers specifically for this version of T28.

Also at what psi does it stop becoming effiecient? 16 psi?

I will be running all of this on a Redtop:

Freshly rebuilt GTiR T28
550cc injectors
Walbro 255
3" turbo back exhaust (elbow,DP,exhaust)
FMIC
HKS SSQV
Z32 MAFS
Brand of wideband and EBC arent known right yet

And for engine management it will more than likely be a rom tune by JWT or Enthalpy.

Has anyone had any experience with this setup?