57 Bel Air nearing completion...long road with alot of bumps. Latest bug: My mechanic rebuilt the power steering control valve, and installed a new hydraulic cylinder and hoses. On first startup, steering wheel would turn itself all the way to the right lock. After a lot of rotatating steering wheel back and forth that problem is gone, but wheel still "jerks" or pulses as you turn it. One mechanic said this is because of air in the system which will take a long time to bleed out. I have also heard mention of "adjusting the control valve" or reversing the hoses. Anyone know what adjustment to control valve? The car was running when I bought it and power steering worked fine but leaked, thus the rebuild of control valve and replacement of cylinder. We've worked on rotating the wheel, probably 100s of times with engine running and not running. Anybody have and ideas? Thanks in advance