http://www.youtube.com/watch?v=DtiW0NXzSzo
This is my current car, 71 455, 6X-8 heads, 66 tripower, ram air manifolds, pypes x-pipe sys with huge (20" case) 17749 Dynomax Super Turbos and flowmaster tailpipes, still getting tune dialed in during this vid, but this car is quiet enough inside to drive some distance comfortably on the highway
http://www.youtube.com/watch?v=lE02rPqnJFY
This Fontaine (clone) was sold several years ago
67 400 , 670 heads, (unknown cam specs) , 4bbl , headers, 2 chamber flowmasters,
Great throaty idle, but too loud out back and inside for my taste