Ok, I have finally managed to buy and install my engine mods. :thumb: I have an '01 KDX 220. Wiseco piston, Delta II reed cage, K-G35 pipe, Turbine Core II silencer and airbox lid looking like swiss cheese ;) . Stock carb. After reading the recomendations on Canadien Dave's tech tips page I should be running a 145 main and 42 pilot. However it says with a rad valve I should drop the main and pilot 1 size (142 and 40). With a Delta II reed cage do I lean the jets also? Temp 65, humidity 60. I'm thinking of sticking with the 145 and 42 and doing some field testing. What do you guys recommend? Thanx Ax.