Totally agree with all of the above!
Sacrifice low 4 top end any day..all about power 2 the ground, no use having too much power off the line..ur right, just wheelspin all day long!
Once the GT30 hits full boost around 4500rpm ur already movin' along..so have maximum grip = more power.
INASNT, sounds like u have a very similar set up 2 myself
I have a GT30--high-mounted, external gate, 550cc injectors, 044 pump, GReddy e-manage etc. I am making 256kw (340.5hp) @ wheels (auto) on 16psi.