Originally Posted by austins z

True but that's with doing the HR head swap. It seems easy to get to the 400whp mark with HR heads just expensive currently and not very well documented. One of my other buddies that is basically going down the same route I am just made 370whp/300tq yesterday without a tune to adjust and dial in for the cams/pistions/headers set up. Hes hoping to be close to 400 after the tune. Also be on the look out for MotoIQ. They are doing a cams/pistons/e85/ported heads/header build in a few weeks as well.