Maximum rwhp for n/a 4.6 2v?

You're prob right.

I've owned a couple late model F-Bodies, as many of my friends have also. I used to roll 20-30 F-Bodies deep through TX with LS1.com members all throughout the week to Hooters gatherings and lunches. I can tell you I am wasting no time with N/A performance in this 96GT I just picked up. Its getting a blower and I won't stop until the car is putting out 450-500HP with ease. With what I've heard about KB blower's, those numbers seem to be easily achieved....
 
it is all in the combo. I have seen anywhere for 300-340hp. I have seen higher with compression and other mods I think ken b over at the modular depot is up to like 362 or something rediculous like that.

bottom line is boost is cheaper in the long run but i will admit I am a sucker for a n/a car.