Alot of you may already know about this but I just came across it today. Supposedly if you take a blower motor and fan for a 94 Chevy truck and put it in a square with air that it blows alot more air. Somebody on FB was saying something about it then posted a link. So here it is. Something to look into.
http://forum.73-87chevytrucks.com/sm...&topic=19365.0