My buddies maxx has this very same problem.It will start fine and run fine for about 1/2 a tank and then it starts stalling and it gets hot and doesn't want to start again.The two of us have tried everything to get this thing running right and nothing has worked and it's not just my tuning ability either,even the guys at both of our local hobby shops couldn't do it either.If someone finds a way to tune this thing perfectly please let me know because this has been pissing me off since he got the truck and I feel bad because I recommended it to him.