n00b dyno tuning question.
 

I have a begi S1 and I wanted to dyno the car to see where it is at. The guy at the shop suggested I do an hour of tuning instead of just doing 3 pulls, but I'm not sure that would be useful since I'm running stock injectors with a basic rising rate fuel pressure regulator. Right now the FPR is turned up as high as it will go for the boost that I have so I can't exactly tune that much. So what exactly would I tune without an engine/fuel management unit?

Would there be any timing retarding that I should do? I haven't changed the timing since I put the turbo in. I'm running 6-7psi.

Any guesses as to how much hp I will put down?