jup in belgium

I'm going to make an appointment for a setup in Holland, but first i want to take on this little problem. i'm just not driving it anymore like this.
Can they fully setup a car that is still running in from a rebuild ?
Or is it ok to use full boost (0.55 bar ) for a short period of time just for the setup?
ive got like 28 kilometers with the rebuild engine..
Thanks for the help