1000 CFM isn't going to cut it. You need more like 3-4000 CFM - no, really - to keep a healthy engine cool on the street. Yeah, that can cost a lot if you go aftermarket, but there are LOTS of junkyard options. The OEM's aren't going to cheap out on a cooling fan, and you can benefit from their hard work. There are lots of threads on electric fans, so you might try searching for something like "Lincoln fan" or "Mark VIII" for some good ideas. I know OzHemi had a very detailed thread on how he installed a Mark VIII fan in one of his cars. Late 90's t-birds also used a similar fan, and Taurus/Sable fans are also nice pieces.

My personal fan is from an early 2000's Volvo sedan:


That fan is EASILY 3000 CFM, maybe more. It draws some amps though, so be prepared to upgrade some wiring - especially through the bulkhead connector - when you do an electric fan install.

Clair