I run electric fans for a couple of reasons besides the fact I think they work better. One of the reasons is that I don't run hoods and don't want a spinning weedwacker when I am fooling around with timing, or other chores. The other reason is that I have seen the results of a fan blade exploding. A guy I know with a 50 Ford was driving along and there was a terrible explosion under the hood. One of the fan blades sheered off and imbedded itself into the hood. I saw the gash it put in there and can only imagine what one would do if it had no hood to contain it.

Don