[rchippie]

There is absolutly nothing wrong with traxxas fuel. Roy from rd racing products & (countless others) uses 33% and he won the NW divison of the RC PROSERIES, & finished 4th at the finals in sun valley. If your still having to tune your motor alot from tank to tank, you might have a air leak around the carb, or back plate, or around your needles. There is a product called AIR SEAL made by racer's choice, it's a liquid that you put on the places i mentioned it helps seal up the motor. This helps the motor hold a better tune. How many galloins do you have on this motor ?.. Maybe you need to have the sleeve pinched. Also temp guns are only a referance point the traxxas rep told me to tune for performance not temps. You want a nice trail of blue smoke, if it rundds good & you have blue smoke he said thas good.