<span style="font-size: small; "><span style="font-family: Arial; ">I have a seagull models edge 540 equipped with an Evolution .46NT engine(which i have never had a problem with) and it is not quite strong enough. Is there any way to increase RPM's and the engines horse power at all? And if a new muffler would help, would the Bisson Pitts muffler do the trick? If not, what could I do?</span></span>