How much boost pressure can a built VQ37VHR withstand?

[Nuc370z]

Hey guys,

So I'm in the final stage of planning out my 370z twin-turbo kit, but I was wondering about tuning and labor cost.

1. Is there an estimtae on how much will it take for a shop to install a twin turbo kit, a rebuilt engine, and oil coolers? I am currently viewing the Fast Intentions Twin-Turbo kit, but AAM Comp. just came out with their own.

2. How much pressure will a modified engine be able to withstand? Current mod list:
CSF Competition Radiator
Methanol Injection
EcuTek/Uprev Tune
Greddy High-Capacity Oil pan
ARP L19 Head Studs
Cosworth Head Gaskets
Wiseco pistons
Carillo/Eagle rods
ID/Bosch injectors
CJM Fuel pump
Fuel system
Return fuel system
Valve body upgrades
New spring and retainers
Fuel pump voltage stablizer

Thanks!
--Nuc370z