Tim Thanks for the response. I looked at your pics of the twin. It looks great. For the problem you have with the carb. It looks like you could turn the engine upside down and make a custom muffler. Have you tried running it with Gas/Glow conversion? You may want to give it a try. It will be more powerful and you lose allot of weight. Plus, you won't have the spark plugs sticking out there. I would be very interested in the performance of this engine!