Centerforce Duel Friction Clutch

I have a Centerforce II clutch and flywheel in my '69 Dart. I only drove it a few times last year before I tore it apart, but had no issues with the clutch being harsh or sticking to the floor. The stock over center spring was in too. Do not have it running with new engine yet. Did remove the over center spring, clutch pedal pushes in harder than what I remember.