If that car weighs < 3350 lbs (what my truck weighs) and I run 9.9's on pump gas with 389 inches and a 76mm turbo on only 13 lbs of boost and other such as Diz does the same with a similar set up (I think T6 turbo on 15 lbs but 300 lbs more) then you don't have anything to worry about.

Traction and boost management will be your issue, not power. I have since installed a Hyperkontrol boost management system but have yet to run it.