Sure am. I didn't believe it myself at first, but I talked at length with my dad, whose input I value over all others, and he explained to me how that is a very realistic number. I guess the bottom line is that pettit releases their kits to the public with very conservative tunes. Even when you ask them for a more aggressive one, they don't do anything that makes a big difference. Waiting for a tune from them, as well as Jeff(I was one of the original purchasers of the AP) is what drove me to create my own tune. I quit more than once, but kept at it. I am pretty lucky I haven't smoked the motor yet, as I heard pinging/detonation more than once during this process. Heh, I still may destroy it.