I saw your posts on the SDC forum also. Honestly, it is hard to diagnos issues related to a modification without looking at it first hand, especially steering system geometry. Your best bet may be to find a 'hot rod' type shop in your area that does these type of steering modifications on a regular basis. They may be able to help you resolve your issues. Steering components are an area (like braking systems) that you want to make darn sure are modified safely.
Another option would be to return the steering system back to stock components. Not sure if that is an option for you or not.