[QUOTE=ossw1] Well the car still jerks to the right. I did notice when I set at ideal and give it gas you can see the steering wheel move to the right every time I rev it up. So I guess I will replace the Valve and cylinder .[/QUOTE]

If the valve and/or the cylinder is NOT leaking(and you stated you think the valve is leaking), why replace? The steering turning by itself indicates an adjustment issue with the control valve. The adjustment is not that hard to do. Of course, if the valve is actually leaking, it can be repaired, or replaced, either way. Even so, a new/rebuilt valve will still need to be adjusted. They supposedly get them adjusted close when they build them, but....sometimes their close ain't close enough!
There are a couple of threads here on how to adjust the valve...

Here's One!!!

And another Adams' Apple2009-04-12 07:56:31

Adam is correct...if they are not leaking no need to replace...what I did to adjust is I took the cap over the adjustment nut off and drove it to see which way it pulled and would stop, turn the steering wheel as far right as possible to get access to the adjustment nut and make a small adjustment and would drive it again and repeat until it stopped pulling...make sure you turn off the engine before adjusting. If you should adjust it too much the steering could violantly swing the other way and hurt you while your arm is in there...TURN THE ENGINE OFF !!!!!!!

The problems with the steering control valve and my steering box being worn, is  it what convince me to put the steeroids rack and pinion on Mine. I went through 3 control valve in the 12 years I have owned my 77. You should be able to jack the front up and adjust the valve for centering. if you have to make further adjustments, i would say the valve is defective. I would replace the control Valve.

Hey I have had 2 power steering control valves thst have leak? So adjusting the valve will take car of this? I have look at the valves and don't see where I could adjust them.

IF the valve is out of adjustment, then yes, correcting the adjustment will cure the tendency for the car to dart, and the wheel to turn by itself. It will not stop a leak, tho.
The adjustment is under the metal cap on the end of the valve, similar to the dust-cap on the front wheel hubs, where the bearings are. I'll see if I can locate a decent pic...


                                                 

Please read thru the above linked threads for the procedure, AND the safety cautions!Adams' Apple2009-04-13 20:06:10

Adam thanks for the pic's. Put the car up on jacks pop off the cap started the engine and did as instructed. Now she drive's straight and true. On to the next thing which will be taking out the radiator for a clean and test. There seems to be a small leak around the neck. Once again THANKS

After reading this post I went and looked at the spot where I store the Vette looking for possible engine oil leaks. Well no engine oil but a nice puddle of PS fluid was there. Got her up in the air and there was fluid leaking out of the control valve dust cap. Got a valve, popped it in, and I didn't even have to adjust it. Man I tell ya, I had no idea how bad that car was steering until I did this.

Thats the beauty of this web site. A group of individuals sharing there passion.

We all love the satisfaction of helping!!!!

can someone give me the link for control valve adjust?