Sounds like you will be flying!! Ya know it won't hurt the motors to string them out to 6500 or 6600 just to see how far it will pull the 31's. It will definately help you pin down what pitch you really need. With the sticks you are running the motor might like it up there! You will need tachs that read over 6000 RPM though!! If you get 130 your Eliminator buddy will be chillin and turnin up the boost!!