Having the same issue as Mike
@Mike69cuda. Getting a screech around 2300 RPM. Definitely the ps/fan/crank set up because I removed the belt and goes away. Tried 2 belts that I had to no avail. Notice some plat in ps pump shaft so got a replacement. StI fire up the car and it's making the same noise above 2000 RPM. Yes I ran it without the belt and definitely from power steering pump. Tried another used belt also. Same results. I did notice that my ps pulley is not lined up with the crank pulley prior to pump replacement. Checked crank OK. Now I have been running this set-up for over 10 years. Not sure how the alignment is off except a bent bracket. Is it possible that something is missing at the long spacer? Anyone have a picture of their set-up?
