I have a '66 gto non AC with a 1971 400. Before I had a bigger cam installed, the belts didn't squeal. Now, when you punch it, or get up to so many rpms going down the highway, they squeal obnoxiously. I've taken it to several mechanics, adjusted tension, sprayed belts with anti squeal crap, aligned, all without any luck. I've been told by a mechanic that the bigger cam has too much torque, and is causing the belts to slip. I was wondering if anybody had any ideas or experience with gator belts helping, or if I should upgrade to a March performance serpintine system? Ofcoarse the less money I would have to dump into her would be great. Thanks in advance for your comments.