Super newbie question

[aussie boostin]

hey guys ive purchased a GN to import to Australia with these specs...
http://a.imageshack.us/img704/3245/engineshot.jpg


Stroker kit, 3.625 forged crank, .040 over Diamond pistons, 5.960 K1 rods
with Mains girdle
GN1 Heads (unported.. leaving room for improvement)
Champion's Intake (again unported)
stock 87 throttle body
turbonetics 62-1 T4 forward facing (sort of the location of the 86-87 GN's)(less bends in down pipe!)
60# injectors
340 walbro hot wired
86-87 ignition with correct caspers harness
MAF translator
3" LS1 MAF (blow through see gnttype.org for idea behind it it unaware)
218, 212 Comp cam roller cam
morel roller lifters
champion roller rockers
custom headers
custom 3 in down pipe
deltagate waste gate 10 LBS spring with VBC tuning boost into 17psi
Rather large front mount intercooler custom pipe work
aluminum radiator
140 amp powermaster Alt custom bracket to relocate to driver side
mini starter
Turbo tweak chip
pypes cat back with test pipe
3000 stall converter
fuel pressure regulator
dual electric fans
new front cover, High volume oil pump, water pump...

the question is how hard do you need/can rev these engines?
i have plans for bigger turbo, injectors and fuel system.

 

[BIGPSI]

i've had mine to about 6200. it's not stroked.

 

[Tom Tom Turbo]

my motor is not a hardcore build by any means, but even with a decent aftermarket valvetrain, I don't spin mine over 6000 RPMs. I don't see the need to spin them up so high when these motors make a ton of power under 5000 RPM's if the turbo/cam/heads are matched very well.