double ugly John you will need 2 relays and 2 4" fans from boating world they are about 25-30 each. You mount them on the shields if you have an era to suck out the engine air through the louvers in the fenders. You need to get the high temp silver tape rap and do this to each one twice to stop the fans from melting in the heat. Have one tested them once seam to be working OK. Can feel the heat coming out of the louvers. Looks like a old world war airplane with the short exhaust system and the stains on the hood cowl.
Rick L.