Still have noise. I found the Dayco 15515 locally and installed it. With it being slightly shorter than the Gates, It now made my alternator belt too long, so back to the parts store for a Dayco 15505. This helped for a few minutes, but the squealing soon returned. So I returned the PS pump to NPD for a new exchange and just installed that, but still I am getting the noise, although it's now more of a grumbling/squealing noise and the belt dressing does not quieten it. Just to be sure, I removed the PS belt and fired the engine again and the noise was not there, so I know it's not the water pump nor the alternator. I've also cleaned the pulleys and using my Dremel tool, I ground the powder coating off the water pump and crank pulleys and the any paint from the PS pulley, then cleaned everything with Acetone and by using the Dremel instead of sand paper, I was able to create roughness on the pulley in the opposite direction, which should have increased grip, but still I have this noise. I was careful not to grind too much to increase the pulley V width. I have double and triple checked any and all pulley alignment and interference with the belt. I am not a novice at this as I have been working on cars as a hobby since I was 15 and am now 66 and did this same conversion on my Nova many years ago without any problem. I just can't figure this out and feel really defeated. I don't know what to do now other than convert it back to manual steering and try to sell the PS components. Any ideas and suggestions would be greatly appreciated!