I'm not sure if it is the normal clutch chatter or not. It starts chattering around 2500 rpm and get louder till about 2800-3000. It only happens with the clutch engaged, but it doesn't have to be in gear to do it. Once I get past 3000 rpm it stops. I have over 2000 miles on it. It is not the stock clutch, it is one of the Promotion custom ones with a Fidanza aluminum flywheel. Also, if I put slight pressure on the pedal, it goes away. I have a Steeda firewall adjuster and quadrant. Any ideas?