This engine runs very cool for sure. The funny thing is a freind tuned it for me at the farm for nitro blast/preworlds in 08(i dont race much lol) and i havnt touched the needle since,I race in north GA so the weather isnt much differant but it never needs a retune.We tried to lean it to get a higher temp but it didnt like it lol.I used to have a rb s7 that liked to run at 190f also,so it might just be the weather around here.Anyway novas are great engines and I will never run anything differant.Thanks for a great engine Monty and I will let you know how the new engine runs soon.