you're not seeing the entire picture with the s2k guys ... they have ability to alter their cam profile at high rpm ... you cannot do this with the 3.2 therefore if you put a nasty cam in there that will give you a awesome high end boost your idle will suffer with lopeyness and reduced drivability ... often times making the car useless as a daily driver.

they are making their horsepower cause they can have the crazy lift required to do so ... we cannot ... so the options are increase displacement so you can run a nastier cam without it affecting drivability or go forced induction cause it makes MUCH more sense in this case.