Chad Braun at XPR has this engine tuned beautifully. It has a free-revving feel with hardly no engine braking and is not only very fast, but very controlled as well. The traction to the rear wheel is amazing for how fast this machine is. Brayton's first and second gears pull so long, it feels like third gear in normal production standards. Now I know how Brayton gets such great starts! WOW!