My zero mile Texas Speed 570 horse LS3. The belt was taken off and cleaned with Dawn. All the pulleys and idlers were cleaned with alcohol and Dawn as well. The sound persists! I used a screw driver and my ear in an attempt to isolate it, but I can't. Everything turns freely by hand with no noise/grinding. Thoughts?
https://www.youtube.com/watch?v=aGTQVrdE-3g