I have tuned my 346XP with a dual port muffler at 13,800, and The 372XP with a dual port muffler and ported top end at 13600. A lot of you guys know more than me about this. How does this RPM range sound to some of you? These are work saws and I want to tune them right, but I am not trying to squeeze every last drop of power out of them. So what do you think? Thanks for your help.