What intake are you running?
I found that the stock oem air-box was sluggish compared to an aftermarket pod filter. Although despite having felt better throttle response with a pod, I don't believe the power increased whatsoever. It actually probably hindered performance.

Definitely look into getting a cold air intake for starters if you haven't got one, you should get improved throttle response and more of a slightly happy feeling when 'flooring it' so to speak..
I know I definitely haven't looked back since upgrading to a CAI.
This thread is definitely helpful for intake noobies

http://www.ozhonda.com/forum/showthr...ottle+Response

As for bigger throttle body and flywheel, etc etc. So far, I'll admit that's been well out of my depth and income.