im gonna keep this short. 07 scion tc supercharged. just installed a stage 3 clutch from clutchmaster. engine shakes like crazy going into 1st gear. goes in good if i rev higher into 1st. is this normal? help a brother out

 

Does the pedal shake also? The clutch is prolly chattering. Or maybe cus its a stage 3 clutch it grabs really good. Did they adjust the clutch pushrod?