The evo is a bullet proof motor. I bought a 96 ultra with a bad motor as I already stated in a different thread. When I went back together. Andrews 27 cam, adjustable push rods, sent the heads to Kendal Johnson. He decked the heads .010, polished and reworked the valve guides. We kept the smaller valves to increase torque, and he supplied me with a higher compression piston. [ ended up with 10.5-1 ] . Wired in a Power commander, larger injectors and a high psi oil pump. Also mounted a 2 into 1 Thunder header. Not only does it sound perfect for an Ultra Classic, it is 5 easy HP and you are just bolting it on! Put 100 miles on the motor to break it in then went to the Dyno. A solid 98 HP. Not bad for a 80" motor!