I have a KF II and have little time with the R582. It was overhauled and broken in on a test stand. I will start flying the first of march in Maine. The temps are pretty cold 20-30 still. I have been told to let the water temps get up to 140 before flight in the summer, I was also told I should block off my radiator in the winter. How can I tell on run up how much radiator to block off so in flight it wont get shock cooled in flight? Any help thanks