no dude you really wont. say there are 2 cars exactly the same in every way tuned by the same guy all work done by the same guy and everything so they are about as near to exact as can be, accept one with 10:1 and one with 9:1, use those for example. no matter what running the exact same boost the higher compression car will make more power. so why not get higher compression pistons and turn the boost up on those.