I took my car out for a test drive and the clutch seemed fine except when I shift at higher rpm then I lose the clutch pedal and I have to pull over until i get pedal again...takes about 2 minutes before I can get a good pedal to take off again. I don't power shift but if I run each gear up to at least 6k rpm and i try to shift at that high rpm i shift successfully but I lose the pedal after that...no pressure at all..I have to wait a while before it gets pressure again...any ideas?...an no I am not power shifting...it drops about 2k almost before I shift...it just seems to do this at high rpms...sometimes when I start the car I lose clutch pedal but thats sometimes...and I have not hydraulic fluid leak so I am ok there