63NovaSS

I have a hydraulic clutch set up on my car with a wilwood slave cylinder 7/8 bore and a 3/4 cnc master cylinder it also has a centerforce 2 pressure plate with a lake bellhousing with a mechanical throwout bearing and a clutch fork. When i go to let up on the clutch at the very top it pops and the car lurches forward so you can not let up gradually. It is undriveable so if anyone has any ideas plz tell me thank you.