Well Horizon told me monday that they had tried a new carburator, new reed valves and a new ignition. They do not have a clue what the problem might be. They only were getting around 5000 rpm as well. They sent me a new motor that arrived today. It was covered under warrenty. I put it on the plane and after hooking up the auto choke ignition, it fired after only 2 flips. Right out of the box. Two friggin flips. I couldnt belive it.

I havent tached it yet. Im going to break it in with a couple more tanks of gass before i tach it.

Thanks for all the suggestions and help.