Making sure I'm thinking clearly here. I'm running just over 8,000 rpm's and sometimes on the limiter. According to the MPH gauge and the GPS I took with me I am running mostly 66 mph and occasionally 67 and a rare 68. My ski is stock and I'm thinking of the following. VTECH 8350 Tune, Cold Air and then 15/20 Impeller and intake Grate. Any thoughts on my current speed and what I might expect to see from the VTECH Tune and Cold Air Induction?