Ok i have a 96 gt vert and it has 128000 miles on it. when i bought it it was making the noise but paid it no mind cause i thought it was just the belt sqweeking or sqweling it only happens when i stomp on the gas and the rmps are coming back down from 6000 it makes the noise real bad I put on a new belt and still the same thing what could it be please help

 

idler pulley going bye bye. pull the belt and rev to 6K... if it squeaks still then I'm wrong.