Engine noise

[Dime]

I've got a slight sputter sound coming from the underside of the car. I've tried to see if it's an exhaust leak, but alas, I can't seem to find anything. Haven't gotten a real chance to try with a stethoscope or anything to help narrow it down just yet though. Car seems to run fine. Might have a slight miss as well like Dmod81 had here: http://www.zr1.net/forum/showthread.php?t=24931

I'll leave a link to a video of it. Mine has a similar sound like Dmod81's did (diagnosed as a miss cause flywheel rattle), but if you really listen you can here a slight sputter there as well: https://www.youtube.com/watch?v=6m832b8IsgU

Any thoughts? Try to see if this is something to be concerned about, then on to the possible miss.

Thanks guys