Bax, I'd made up some very simple baffles last week and hopefully try them out sunday. I've also changed fuels and props so time will tell if it cools things down. I've also been doing some forum research and found that these twin cylinder engines need a fair bit of running in before they are at peak performance. I'll try flying it on the 20 x 8 and 22 x 8 with the new 10% nitro 20% oil mix and see what happens.