RE: 30cc Edge 540 build
FYI...for you guys using a DLE30 with the stock "muffler". It isn't a muffler and you will be at about 103 db (pain range) at 10' using the AMA test standards with a Xoar 19x8. I would find a good pitts muffler before you cut the cowl. It will save your ears, your field and look a lot better.