Challenger1, I have the same engine. There's a YouTube link in my sig. to my engine on the dyno. Give a listen. I honestly don't know if it should be that loud.

Vert > [img]http://i.imgur.com/JHXmM.jpg[/img]71 Barracuda vert[/url] | Hemi idling on dyno | Hemi Dyno pull