Tony Lam

I just bought a 2004 Camry with manual transmission, it shifts fine and the clutch engages fine as far as I can tell. However it's pretty hard to push the clutch in all the way. I got a bathroom scale and stuck it between my foot and the clutch pedal and I have to exert 70-80 lbs of pressure. Is this normal or do I need to change the clutch master and slave cylinders? The clutch itself doesn't slip at all.