me and my friend run reedy`s in our rc8t`s whith p3 plugs. whe run the 8mm carb insert, and byrons 30% fuel. our head temps are normally 240 to 270 every weekend.and have been for 5 gallons of fuel. as fare as the tune I usually start off whith the high end needle 2 1/2 out and bottom end 3 turns out. but last weekend I raced at reo raceway`s indoor track I had to richen the top 2 hours. the head temps for bothe motors 240 to 250. we pited every 11 minutes. ps just give the reedy a litle time to breake in and the temps will dop. I hope this helps? rc8t factory team pipe. 1.1 clutch springs whith 14/52 gear setup.