I put my 05 900 fusion to 136" with 1.5" track. I am running factory weights, polaris black/ white primary and polaris red/ black secondary. Last year ran 23 39 gears and was satisfied. This year went to 21 40 gears and wow what a hole shot but lost some mid range and top end. I have the slp air box, torque stops & push arm and mbrp can. Does anyone know what springs and weights I should be running.