Just a note on the impeller. Many feel they can add an impeller and gain speed. Well,,,, this is true, but at a cost.
If you get a higher speed impeller, you will lose the low end performance. And, if you get a low end (for power and pulling), you will lose top end speed. There are a few that will help in all fields such as specific Skat Trac impellers. They help out in the low end, mid range performance, and SOMETIMES a minor top end increase.
With the intakes, somewhat of the same issue. If you install a "Top Loader" (Throws water into the top of the tunnel) it will give the impeller more water, which does improve things. BUT,,, again at a cost. The hook that throws the water up top causes drag. In choppy water, this is not an issue. On smooth water, the drag is substantial enough that you can loose performance. They will help with maneuverability and turns though..
In a nut shell, unless you can get more out of the engine, adding modifications may not help. The Skat will simply as it gives you a bit more performance within your normal range. A cold air intake should help as well.
Clear as mud?
