Diablo, it doesnt sound right. Like I have mentioned before the best I could get out of my 110 on a menz 28x10 was 6400. Best on the 106 on the menz was 6600 (friends 106 6700), both on stock mufflers. I know the bme prop is a little more load, so I cant see it turning up that much with the bme 28x10. I would take the 28x10 thats on it and measure it to make sure by some freak chance it was mislabled, etc. It took my 106 on full length tuned pipes to break the 7K mark on a 28" prop. I would like to see it run, if it does run that hard, its not a typical 110, dont get me wrong its a fine engine, but the typical one does not run like that. With a 26x10 it will get to 7K, my DA turned a 26x10 at 7K, but quickly realized I didnt want that many revs on mine breaking it in.