Head Temp
Actually my max race temp currently is like 235-240 and that is after the 24T conversion. I am pretty much at 100% on the high end needle. I physically can not lean any more as there wont be enough fuel in the crankcase to run correctly. Hea temp has not been a factor since I have been running my Sirio with 30% nitro. Plus I am so lean I am almost getting 7 min tanks. Its pretty insane.