Thanks for the input everybody. First thing I noticed is that it was heavy-esp compared to 30cc class 2 strokes. Yup camming a 4 stroke has always been like piping a 2 stroke but worth it in this case??? I might just try opening up the muff and a little bigger carb before I detrimmer it to see what happens to the power. Except for that it does do pretty job on the weeds.[sm=72_72.gif]