Electric Fan on Ebay

[jsdoyle]

Thinking of putting an electric fan on the Chevy. 350 runs hot when idling/cruising under 10 mph.

Any opinions on a cheap kit like this?

http://www.ebay.com/itm/like/140859710614?lpid=82

I'm a big believer in "you get what you paid for" but I don't have any experience with these.

Also, if wired to run even with the ignition off, would the draw be too much? Run the battery down until the temp drops below 170 or so?

Thanks!