I think when you get it all worked out you are going to be right around the numbers you expected the other day. You've heard me talk about my old C5 times several times now. But I regularly pulled 12.3-12.6's out of that on Kuhmo all season street tires and a stock 3:42 rear gear. Out the box it was rated at 396Hp and I am not sure how much adding the O/R X pipe and swapping old the CAI for a ram air effected it, but lets say it was a little north of 400. Car weight was right around 3300lbs. (not adding driver weight) so I think it had about 150lb. weight advantage. Now I am not saying I am the best driver or anything, but after practice, I was pretty damn consistent. I know I could have improved ET's greatly with better tires (which you have).
I would say when on the juice that you are probably making somewhere right around 400 +/- at the crank.
I think N/A (even with slicks) that you won't break into the 12's, but with the N02 I think you will get down to mid/lower 12's (with sticky's).
Keep us posted.