I have a 1984 Spider, and am restoring a 1974 GTV 2000; I've heard that replacing the engine-driven fan with an electric one, can give up to 5 HP increase in power. Down side: I've heard that can use up to 5 Amps, and some fan sites say up to 13Amps. Almost think I would then need a new alternator on my 1974 GTV. IAP and other aftermarket suppliers seem to have easy electric fans, but I've heard that european companies like SPAL have quieter and more efficient fans. Anyone have experience with electric fans, i.e., what fan would use the least amps, give you the proper cubic feet-per-minute (cfm)? I've heard that 2,000 cfm would be good for my Spider and GTV? Also, what size fan? Any help would be appreciated. Thanks.