Hate to break the news, but at 7000 rpm the ski might do 61 at best. Your dream-o-meter is lying. But something has changed with the loss of rpm. The most obvious thing would be your raves. Remove them and clean. Check all wiring and hoses connected to the raves and solenoid.
The next obvious question is what work did you do to the ski? There is not a speed limit setting on that ski.