ID a cam by sound?

Hey guys:

How good are you at identifying a cam by sound?:D

When I put the exhaust on my Dart a few months ago, I made a video of its first actual drive. I realized I had a pretty good exhaust clip in the bargain. So, I'll post my YT video and see if it's something recognizable.

This is a 318 "mystery" engine. It was in my brother's '73 Sport when he bought it and all that is known about it is that it's got X heads and '68 340 intake and exhaust manifolds. Evidently it was built to replace an actual 340 that blew, because although it's a mid-'70 block, it was painted the correct red for a '68 340, then painted blue before it went into the Sport. I don't know if they changed pistons or not btw.

Enjoy.

[ame="https://www.youtube.com/watch?v=DiuRWL_9BA8"]1973 Dart Sport first drive in 21 years - YouTube[/ame]