Not sure he still has the videos out there of it running.. but its a mean ole nasty bitch of a engine.
When they were working on the Nitrous for it.. they had some clips up.. and it was a fire breathing, burping farting, backfiring.. monster of a howling critter.
I myself found it quite scary to hear run on NO2.
Kinda like a rotary with boost, and an explosion at the same time. Spooky.