Here's my 468 with 9:1 compression, comp solid lifter cam 236 @.050 duration, .561 lift with 110 lobe separation, pocket ported heads (ovals), port matched intake and a q jet carb, exhaust system with this clip is TRUCK manifolds, 2 1/4 duals running through 24" glasspacks. I have since replaced the manifolds with flowtech headers, full 3 inch pipes into the stage 1 mufflers (dunno who makes them, the exhaust shop carried them) and then reduced to 2 1/2 pipe. I need to get a sound clip of that. Hope this attachment works!!!
Also if you go to
http://exhaustsoundclips.com/gm.html
a BETTER soundclip of my exhaust is available there. They used my truck for the 468 CI V8 soundclip. Like I said, I need to get an updated clip with my headers. I think my truck sounded meaner with the manifolds on but the performance wasn't there like it is now with headers.
Joe Hirdler