Here is a picture a friend at my field snapped with the Honda running. Tached it at 6200 with no header at all and an 18/8 prop. I think it will go up some with a header. I will be making the final intake for it now that I know it runs well. I made one out of 2 pieces of 1/2 inch Acetal. One with the bore of the intake on the cylinder and one with the bore of the carb. I will mill a new one out of 1 inch thick Acetal and taper the bore from about 5/8ths down to about 1/2 inch. The air will flow smooth and have no sharp transition edges like now. Maybe a little more RPM with it. I hope the manifold and header gets me to 6800, maybe wishful thinking. After that try different carbs and props and then start all over with a new cam. I will post a video that was shot as soon as I get it from my friend. Sounds good with open exhaust too.

Tim