^Josh what Bobby said, depends on your goals. My goals have never been more than 700, I'm there and I'm done. I know what I'm using will hold up but if i were to go for 1000 i would have changed out a few things like rods, I used a upgraded wrist pin but i didn't go with the biggest because I didn't want to add any more weight than I really had too....if i was going for more power I would have added even bigger wrist pins. I probably would have done a iron block also, but for me 700 on the street is plenty . I'm rarely more then half throttle.