Blown 440 Duster - It's Alive! Video

Worked now, that's bad *** but much much much to quiet. Does that blower have relief in case of a back fire?

Yes, there's a backfire valve on the manifold.

As far as sound - well, the video doesn't really do it justice. It was sitting over dirt. When it's over pavement or cement, different story. On the interior shot of the video, I brought the sound level down too. Loud is not a problem. I wouldn't mind a different tone though. Flowmasters might give it that ratty note.