04 King cat Jaws twins stock Primary well broke to Ti springs so went to the yellow green, straight 51 red white secondary spring, 340 mains needels droped down one Pilots up 1 size, I weigh 280 ready to ride, and with the attack 20 in hill climb, it pulled 55mph up every hill i point it at. AMAZING sled. and stock with a mbrp can 340 mains same clutch set up, but all motors very. but should get you close. oh ya riding around 4000 to 6500, you can drop down to 320 above 6500 but its a wee bit lean tell you climb a little higher. stock gearing. good luck