Yz 426 f - Iridium spark plug - Hotcam exhaust cam - open Rino exhaust - valves in spec Graphs shows some different runs. Has 50hp on the wheel , but needs tuning! I just drilled and tapped a hole for the BK carb mod. I think I need a smaller stationary jet. What is your guys take on it? And what do you think about the 50whp. What is stock and is this decent?