Ok, I already have a set of SE 255 cams that I'm getting ready to install in my 2011 Fat Boy Lo (96cid) with Vance & Hinds BSS and a SE Ventilator AC. What I am currently debating is weather I should go ahead and install a 103cid big bore kit and some mildly "street" ported heads. Do you guys think I will be able to feel the difference? Has anyone done the cams first and then later on upped the cubes? If so how much of a difference did it make? I am planning on getting it dyno tuned after the engine mods and I really don't want to spend that money twice, and I really don't want to spend the money on a big bore kit for just a few ft/lbs of torque that I may or may not feel. Your thoughts and experience would be appreciated.