Can you guess my cam?

So I'm trying to hunt down the original builder of my engine to get the cam specs but in the meantime, I've uploaded a video of a 1k idle. Can any of you take a listen and see if you might recognize it. I know it's less than scientific but perhaps a couple of you may have a rough idea. Thanks!!

[ame]http://youtu.be/yMeSMURxs9s[/ame]