So i just bought a 1999 mustang GT that has a cobra motor put in it. I was driving it the other day and as i went to stop, i pushed the clutch in and upon doing that a popping noise came from the pedal and the clutch pedal went straight down to the floor. However the clutch pedal still had some resistance. I am not sure what is broken, i went and took the cable out and observed it and found that it was not broken. The car i can put in first and start it and drive it while rev matching to shift (how i got the car home). Im not sure what the issue is and was wondering if anyone had any ideas. Help much appreciated.