i HAVE heard of cars making more power ON a dyno with race gas.. now i TOTALY agree with what was stated about octane and it JUST being resistance to detonation, but why do some cars show slightly higher numbers on better gas.. please refrain from saying something liek "you are a liar" or "show me the dyno" im NOT saying its true.. im JUST saying ive heard it MANY times MOSTLY from domestic tuners..