That pressure sounds like an awful lot for not only the car but the turbo (Assuming it's the standard T3) imo.

As standard they are circa .7 PSI, your ECU has been "Chipped" else you woulden't be able to run the additional boost.

As it's new and unknown to you, your best off taking it for a setup where the AFR etc will be checked, for all you know some ill infomed meddler could have turned the bleed valve and you have a ticking time bomb, it will give you piece of mind as well.

Martin