[Philip]

In the process of making a crossmember to get the TKO in the Nova I have discovered that the engine and transmission are offset to the passenger side of the frame by nearly an inch. The stock transmission crossmember was the most obvious clue. I then checked the front crossmember to see if the engine mounts were also offset and found that the front crossmember is. It wasn't that noticeable in the car because the steering shaft hides the extra space on the drivers side. Below are some photos showing the differences from side to side and the transmission crossmember.
Drivers side

Passenger side

Trans crossmember
(which is upside down)