3rz is 150 HP, its quick on a light truck but honestly why would you blow money on a new "faster" engine and get a 150 hp engine. you can get a performance kit for 1500 that will boost a 22re to 200-some horse i believe (basically replaces the entire upper part of the engine) then another 1500 for a supercharger and i believe you're sitting around 250-300 hp. slightly more expensive but a hellova lot more power. look at lc engineering's online catalog (google it)