RE: RCPRO Warbird Race May 19, 2012, St. George, Utah
The O.S. 55AX works great in a Bronze plane . I Had one (still do ) in my moded PTS mustang and broke out whenever I was not paying attention to the time. Just pulled the baffle out of the stock muffler and ran a 10/6 APC prop on 15% and had a ball. Had the eng. for about 4 years on several airframes and still runs great.