I have a 3" body lift on my '72 which makes it so I can't use the fan shroud. I would like to go with an electric, but they are very expensive and I'm not sure how to find a good one. I found a site that said that i need at least 3000cfm for a small block v-8. is this accurate? can I get away with 2700-2900? (most of the fans I've found are in this range max.) I picked up a dual fan setup at a junkyard off of a '94 camaro. anyone have a cheap way of controlling them from the temp gauge?