Clutch Chatter In/Out of Gear

[DemandedAce]

Hey all!

I just picked up my Z on Saturday from the dealer, she's a real looker. Only issue is that the previous owner installed a stage two clutch/flywheel and I don't know what manufacturer they are from. Is there a way I can tell without opening up the tranny to see? The reason I ask is there is sometimes some heavy clutch chatter both when the clutch isn't engaged and when I'm in gear, and I'm thinking it's because the clutch may be set too tight and isn't fully disengaging when the pedal is let all the way out. Any thoughts on either of these? I've done some searching around and I know that I can twist the black adjustment knob behind the pedal, and there doesn't feel like any play in it at all and the release is pretty much right as the pedal is at full-out which seems to me like the clutch is just too tight.

Thanks in advance!