The NOR269801 number is the Norwood body number assigned to that body by the Fisher Body plant. It helps track the car through the plant. This number will never match the VIN.
The 029 is more likely 02D or similar, this is the body build date, February, and the letter denotes the week, A,B,C,D,E....1st thru 5th week.
X11 code can be several different things, however, your car has one of two options...either the Z21 style trim group, or is a Z22 Rally Sport. Like mentioned, the car could also be an SS with one of the two above options, depending on the VIN of the car. Could you post the VIN??