i look at it this way though. say I have 4500 to throw into building an engine ok. If I build even a 455 verses a chevy 350, by the time I'm done, which one would have more power? Really, It doesn't matter how much streetability it has because I don't care. My buddies dad's chevelle has close to 500 hp. and he runs all over town with that thing. Gas mileage is no big deal. If I have power, I can stop and put in some petro. And I know it will all depend upon what I were to put into those 2 motors, but I've looked all over trying to find some parts places, some really decent parts places and they just aren't there. I have postons, year one, original parts group, and T/A performance.....why doesn't anyone make decent parts for what we need?