I have a clutch fan on my 66 Chevelle , can you tell me how this operates in general? Also yesterday I went out riding my temp was up to 190 , when I went to restart it bearly turned over. I'am running headers with a heat sheild wrap on the starter. No fan shroud on the radiator. The clutch fan came from a late model Chevy van. If I added an electric fan kit to it would that help the cooling ??