silver02a4

when doing a 2nd 3rd or fth gear pull starting at 2000 rpm my car has a real bad vibration and not much power i dont know if it has something to do with the quattro or the clutch im not sure. but if i start out at 3-3500 rpm it pulls hard and has plenty of power to 20 psi and holds to 12-14 psi at red line.
my mods are revo,intake,samco