I was able to get another video since it was kinda cold this weekend. Right around the 12 or 13 second mark, you can really hear it and it's gone by 16 or so.
https://www.youtube.com/watch?v=rhN0MFkhRGI
I'm just hoping someone can confirm that what I'm hearing is the manifold leak and not something else.
I think you are good man, sounds typical to me.