I think I got a 165 or 168 main at sea level. Look in THUMPERTALK.COM tech section.
However the board has been down for a few days for some reason.
I need to get to my profile as I am trying to get together to race this weekend..JR
OH yea this is not for S-model only 400e offroad with fcr carb.
My buddy has a 170 main but he complains of needing power and I don't.