I'm also converting a 33cc Poulan(chainsaw) on glow and it ran on glow with a 18-10 and the stock muffler. Didn't get good numbers as the carb isn't adjusted yet. Using a wt-324 walbro and will need a redesigned test mount as mine wasn't as sound as I had thought and the vibs are high. Still in the works and it will eventually go a a large SPAD.