Ok so i recently did some mods to my motor (pistons, mild cams, and balanced the motor. I was told my bike is running very lean because the header are glowing bright red. im in the process of trying to get it tuned now. ive talked to a few people about it and some say i will gain more hp and tq when i tune it and some say i will loss hp and tq when i tune it . The way it was explained to me was since the bike is running lean it is at its fastest (Lean is Mean) but also very dangerous and could blow the motor up. After the tuning is done it will be richer which would cause it to lose hp and tq. My question is, is this true or just a bunch of BS? If the bike is running lean and i get a good tune, will i gain or lose hp and tq ?