Hi all. I was given a rough looking 359 a few weeks ago. My intentions are to tweek it a little, give it a thorough clean and use it as my weekend firewood saw. I will be opening up the current non cat muffler and swapping the carb boot and plastic clamp to the metal clamp equivalent. Suggestions for further mods appreciated. As i first saw it. I took this pic to work out exactly what it was. A quick google search led to posts here on muffler modding these saws... this could be a slippery slope. more dirty saw pics, findings and questions to come soon.