It sounds like either a bad pcv or a vaccuum related issue of some sort.
we have installed alot of gen 5'* and heard similair noises until we installed a breather due to PCV system not working. Sounds like a box of rocks, similair to this noise.
I would run the car with the oil fill cap off, noise will be gone is my guess.
Either way, I wouldnt panic, sounds like a small issue a little troubleshooting will find. check fuel pressure, vac at idle, remove */c belt etc...
calling you now.