So I was at a track a couple weeks ago running a big money race in alot of classes including the predator box stock classes.There was some big name national drivers running the predator classes and their motors didn't even sound the same as those running mid pack and you could clearly tell those engines were not true box stock but looked stock.Track has 5500 rpm rule with governor hook up and a claim of $160 I believe.So what can truly be done to pick up power???