whats the coldest you would run your savage in without wraping the cooling head, and at what outside temperature should you wrap the cooling head and what material would you use?
If it's below 40F, I wrap. If it's below 20F I don't run. Too cold for me to stand out there unless there isn't any wind... which usually there is around here.
I used to use a hunk of rubber bicycle inner tube, but this year, I just used a strip of tin-foil that I doubled up by folding it, then wrapped it around the head and put a ziptie around it to hold it. Worked pretty good.
I'm guessing you have some sort of powered ventilation to suck the smoke out, or do you just run a line to the exhaust so it can sit and idle on it's shelf?