Hard to say from your video, however, it is not unusual to get a rattle from a SMF.
 
	 
 
	Best to get it checked out though by a 350Z Indy that knows their way around a 350.
 
	 
 
	The kit that you have fitted is not really a road set up and lends itself more to track use.
 
	 
 
	Where are you based?
 
	 
 
	What garage fitted the clutch?