No, you won't hit 600whp on 93oct unless you have a gigantic turbo that is completely useless doing anything but drag racing. Even then, there's no reason to spend $30-40k just to run on 93oct, because it's not going to be street legal.
How much boost? Boost is completely dependent upon the turbo itself, and you can't run big boost without race gas, plain and simple. I'm thinking 600whp is not for you
You could get 600 awhp with a GT35R, 2.3l stroker kit and other mods (I know AMS has done one).... but that is alot of power if you want to drive to work everyday... but if thats your goal right on man go for it and keep us posted :thumb: