I recently bought an 06 merc mariner 9.9 and put in on my little river runner. The boat is a 14 ft semi V jon boat. After running it a few times it just seems like the motor is not running at its full potential. Is there anything that I can do to make more power? Any mods that I can do that will up the preformance? I guess it just got to me when I saw an old johnson 5hp motor on a flatbotom jonboat screaming up the river(you know the pride factor-my engine is twice the hp but that one was going alot faster). Anything???????