flhyr,

Are you near San Antonio? I'm sure we could get you straightened out. There is so much stuff being thrown at you here, but it's usually something simple or a few small things.

Just going by the colors I've seen in the few photos, I can see it sure got hot. Two ways to go from there;
First, fuel-wise. When you are running at full-throttle on the ground you should be hearring a little bit of gurgling. That engine will wind out faster at speed in the air without the drag from sitting still and it requires more fuel for that. Some engines take that very badly. Also, try the lower percentage nitro and cooler plug next after you set it for the gurgling, or in addition to.

Second, making sure air gets over the engine, but I'm going out on a limb here and say that's not what is going on, at least not to such an extent as to see what we're seeing here.

Send me a PM, maybe we can get together if you're not too far away. I'd be happy to work with you on that.

Jimbo