The fan belt on my '66 squeals at no matter what, when the engine goes about about 3300RPMs. Even when I tighten the belt or loosen it, it always squeals at the same rpms. I only have 3 pulleys on the belt and I assume that the large distance that the belt travels causes the squealing. I tried Gunk, it doesn't help at all. My fan belt is the V-type (or whatever it is called) that has more traction. Any ideas? Maybe a wide pulley set? Here is a
photo, if that helps anything. Thanks