RE: Which conversion for a Midwest AT-6?
28cc Mac's are available for about $45 shipped. I'm getting a hub and muffler from Ken Lambert. This might be a good candidate for the AT-6. I have an OS 1.08 in my AT-6 right now and it's overpowered considering they say a 1.2 to 1.4 2 cycle for it. I'll look at my AT-6 and Mac engine to see if it looks like a possibility.