Not really, They are running them exceptionally lean to meet emissions requirements now a days. IF they knew what they were doing they would design a better head, this would take almost no effort and really wouldn't change anything about the way the bike looks except maybe the valve cover, and they could even keep their cam in block 2 valve head and do a damn good job at the same time(2 valves are the way to go if most of your useable RPM's are below 4500, proven fact many times). They would design a head with good swirl, a combustion chamber that promotes swirl, and an efficient burn, and an exhaust port that will get the air out faster to keep the head cool. Take GM's LSx motors for example. THAT is a killer head design, and the head is where it is. GM's poorest flowing head flowes more than Fords best 4 valve head, and GM's best head flows more than many top of the line aftermarket Big block heads. all with "ancient" cam in block, 2 valve/cyl heads. A 2 valve head gives you swirl. Which is prudent for making torque and filling the cylinder at lower (below 4500 rpms) speeds. I'd be willing to say with a simple head redesign, cam change, and decent computer system 1hp per CI would be easy to acheive without pushing the limits of air cooled motors. Not to mention the coatings they have available today. Coating the bottom of the intake valve, combustion chamber, and the exhaust valve/port to the manifold would EASILY control over heating problems while allowing them to make much more power. But it all starts with the head. and they don't have it, and won't change it. Hell they had to go to Porsche to get the engine for the VROD (which still isn't all that impressive for a 1200cc V-twin if you ask me)!! how much more proof do you need that they are imbeciles! Buell was so fed up with them he went to Rotax for the engine for the new 1125R and FINALLY has a respectable sport bike (that I may even look at if I can get one outside of a HD dealership) HD is full of idiots. They could easily keep their air cooled (why?) motors and get MUCH more performance, and better emissions out of it with a simple redesign, and all it would REALLY take is a better head. I bet I could make a better head than what they have.