My forged engine buildup has been sidetracked due to one of my four wheelers that I race taking a dump on me. A large chunk of money had to be put into that so I'll be waiting 'til winter to build the new motor. In the meantime does anyone know what the stock internals are limited to in terms of hp? I know every car is different but I hear of a lot of stock bottom end cars making 450+ rwhp. With a retune and Ultra Grip pulley I hope to be making the full 12 lbs of boost my blower is supposed to be making now and would like to see at least 425 rwhp. I know it's not gonna' last 100k miles but I also don't beat on it and rarely go to the track. Just looking for input from some veterans at this. Thanks.