I have a Flex-a-lite Black Magic on my Carb'd 347 stroker. Don't really understand why you would think the induction would be a conflict with the fan, but I wouldn't worry about it. The Black Magic also has its own adjustable thermostat. The basic connections are Battery source to power the fan motor, ground, +12 volts to turn on the relay (usually "key on" power), [optional] manual override, and [optional] A/C on.
Go here for more (click on wrench graphic for instructions)
http://www.flex-a-lite.com/auto/175.htm
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347, 279/284 .493/.510, TFS TW, Stealth, 750, Flowtech hdrs, Dr. Gas X, 2 Chmbr Flowmaster, MSD 6AL-Dist.& SS coil, Art Carr C-4, Currie 9" w/3.55, alum Drv Shft, susp mods, 4 wheel power disc
In a 66 coupe