maine-e-axe
Junior Member
Yep, it's the cam. The 551 cams were designed to deliver the best TQ available below 4000 rpm. They pull great where you spend 90% of your time riding. Head flow will help make a bit more TQ and HP but if you are hunting for top end numbers the 585 cams with 10-10.5:1 will be the answer for bolt-in easy start cams.
What's the x-wedge pullin on the dyno?:bigsmiley6: