x and h pipes

Don't let the fear of a quiet exhaust make you stray away from an X. They make the engine sound awsome, much better than without. I have supposedly quiet mufflers and trust me the x and these mufflers are not quiet. Here you go, love to help some people out with their decisions, this is my weak, worn out 318 with dynomax coated headers, $80 summit 2.5" X pipe and Hooker Aero Chambers(Hybrid of absorption and chamber, supposed to be pretty quiet... ha):

http://videos.streetfire.net/video/1971-Dodge-Dart-Swinger_75800.htm

What kind of cam you got in that thing?