Originally Posted by Thrush
Not only possibly track rod ends.
This happened in my 3i and cause was one of the anti roll bar bushes popped out of it's housing. under any throttle the steering wheel was at 90deg to the left to keep it in a straight line, and off throttle it was at 90deg to the right to keep in straight line....
cheers if the track rod ends dont sort it i will fit some new anti foll bar bushes. Take it they aint hard to fit are they