I have found the same thing as mentioned above. the tr likes to run hot.... (common sense though start rich and tune for performance) but you will most likely see that it likes to be hotter. under 230 for me and it isnt crisp and is hard on gas.....over and it is a screamer. Mine is moddified and yesterday won the day at the track whippin the nova and rossis and jp engines. (I had won heats and races before but never overall winner on the day, and never beating the guys that were there) It doesnt have the same whip out of corners as the novas but is much smoother and as a result was faster. I say get it and modify it and you will be trully impressed 10+ liters on mine now and it still feels stronger than ever! It can take taller gears too no problem.