Ouch!
The timing is way off because once the timing belts come off or gets messed up, the cams and crank are free to rotate separately. Did you already take the timing cover off to see what it looks like in there?
If the belt is like hanging off, at the very least your valves will be bent. The only way to check the damage is to take the heads off to see what the valves and pistons looks like. If it's only the valves you will be lucky. When this kind of thing happens, pistons can break or crack, valves get jacked up, the heads themselves can crack, etc.