To be honest, I hated my Balck Magic. Never knew if it was ruuning, other than when the temp shot way up. I was running a Fluidyne and a 180* t-stat. Still didn't like it. Bought a HD polics fan and clutch and never have a problem. It does heat up some in traffic, but as soon as I move, the rpms from the engine help pull the air through at a higher speed, unlike the Black Magic. I would definately stick with the stock, or even get a HD one. I would rather lose the HP than have the heat. Hope this helps.
Chris
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1987 LX, Best times:
13.47 @ 102.49, 1.80 60ft 6900' DA
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