Been out of the Mopar hobby for awhile, but jumped back in today. Picked up an original 73 340 4spd sunroof Duster. It has the fold down rear seat as well. I believe they were marketed as the "Space Duster". I know its not a Hemi Cuda, but I think the combined options on a 340 4spd car are pretty uncommon. The car is a project and the 340 is MIA. Can anyone shed some light on production numbers for 1973 340 Dusters? Also, any other web sites that might have some info on these cars? Thanks!