Where do you live? Elevation?
Thats waaaay to rich for no mods, I dont care where you live. Why does he have a jet kit with no intake + exhaust mods?friend has a es just put 28 mudzillas, 1" lift, and dyno jet. breather system is still stock. Put a 136 jet in and when he gives it gas it starts to miss and knock it also will not idle correctly except with the chock out. What size jet does he need? Thanks