Frank:
It sounds like you need to adjust the infinity stops if that's still possible (depending on how SK Grimes mounted the lens it might not be possible). If you can, rack the focus all the way back, then out about 1/8th of an inch, then lock the focus there. Now the fun begins, using a loupe, the ground glass, a very distant object, and LOTS of patience you need to get it focused at infinity when you lock down the front standard. I've found Linhof's are a lot easier to do this with, as with the Graphics there's lots of slop in the front standard when it's unlocked, so it will look like you've got it right on, then when you lock it, it goes out! Once you get this done, it should be easy to get the other distances to set right.
-Mike