Thats the SDCE built Duster, there is more video floating around on this site of its dyno sessions. It started as a Procharged small block and recently went twin turbo. Awesome car, thats just the tip of the iceburg of what that combo is capable of. The 73 Challenger is Scotts personal car that was the start of his business SCDE. That car runs very too on a small drag radial.
YouTube - 1000HP 1973 Challenger 8.54 pass street legal
http://www.youtube.com/user/sdconcepts