Thread: UR pulley causing P/s problem?

I installed the UR crank and water pump pulley's. But now the power steering will squeal if you are turning the wheel and rpm's fall under 1500 rpm. The steering wheel will shudder a little, and I hear a noise at the driver's front wheel. The belts are tight, and pulley's are too. How can I fix this problem? It seems that the power steering is underdriven too, so it can't operate properly without giving it revs. Help?