Just replaced clutch in 2003 Hyundai Tiburon Clutch pedal will not go to floor to disengage clutch or work neutral safety switch Help?

It sounds as if the clevis connector for the clutch master cylinder may be incorrectly adjusted too far out. Removing the cotter retaining pin and the pin that attaches the clevis to the clutch pedal and turning the adjustment nut to shorten the clutch 'travel' should fix the problem. (or if you had a shop do the clutch replacement, bring it back to the shop and have them correctly adjust the clutch master cylinder travel) Hope this helps