340 Wedge?

Here's another question I have no answer to....

What exactly is a 340 Wedge Duster, aside from the blacked out hood and the 45deg. Wedge sticker.

To the best of my knowledge only 511 of these were produced in 1971 (only).

The reason I'm asking is I can't find any special codes for this option.
All I can find is that it was the most powerfull 340 Duster, which was fitted with the Themoquad and the heavy duty A833 and the Hurst shifter, "J" heads with 2.02" valves.

I have this combination, aside from the "Wedge" hood sticker.

I love my Duster, wether it's a special or rare piece or not, it's very special to me. (20 year love afair ).