right, i need a bit of help. i have read everywhere that stock 1.6RST engines (s2's) run at 7psi. how far can the boost be turned up safly on a stock engine.

what i have is

~T3 stage 3 hybrid BB turbo
~ - 31 Actuator
~Kent CVH25 cam
~Piper cams vernier pulley
~Stage 3 port and polish head
~Stage 3 Ecu with hearts and diamonds chip
~Denso iridium Spark plugs
~Full S/S scorpion exhaust system 3" from manifold
~Scorpion 4" rolled back box to go with system above
~Samco boost hoses and inter cooler pipes
~Polished charge carrier
~k&n Air filter

the engine has been fully rebuilt. it is pretty much a fresh engine. now what could i turn the boost up to (psi) safly. i have been told that 8psi is too high! but im sure that 8psi can be run on a complety stock engine!

also how do you turn up boost? i have an internal wastegate, so how do i got about turning up the boost, or shall i leave that to pros?