After much thought and searching here on the forum I rolled the dice and installed the S&S 600 cam. I took it in and had it dynoed and jetted and went out to enjoy the world. The K-9 ran absolutely incredible, the power the torque and the sound made this a dream bike. Just over a month later and I've just changed back to the stock cam. The reason is most of my riding on this bike is in the city and in a group, the 600 cam is not made for or ideal for this type of riding. I'll be crying all the way down the road when I'm out on the backroads. But I will be looking at the 585 or equivalent for my next go around.