Going to be using the TTS tuner. Believe me the bike won't leave the dealership unless it is running the way I want it. Worse case scenario I go to the Stage 4 cam, that is why I am using adjustable pushrods so a cam swap is not that big of a deal. The mechanic who is building the bike knows his stuff, and I trust his abilities. So I guess we will see where this adventure takes me. The wrench, when questioned about the relationship between heads, cam, throttle body, was confident that this combination would bring the torque curve to where I want it and that the throttle response with the 64mm throttle body should be great....(sound like Trump...ugh) Anyway, time will tell. Thanks for your input.