the pulley groves lightly the squeal usually goes away. I've only had 1 squeal that was easily remedied by this method. The anodized surface can be quite slick and seems to magnify the chance of belt squeal.
1993 Nissan 300ZX Slicktop (Oxford Gray Metallic) 1991 Nissan 300ZX Slicktop Track-Star 1992 Nissan Skyline GT-R (Gunmetal Gray) - Long Live the Z and Godzirra! - "Love cars. Love people. Love life." - Mr. K.