so i got my car from a friend and she said it ran great then it broke down on her boyfriend. well i tore into it and found the timing gear on the cam was nearly round and had no teeth. i replaced that did full tune up and the car is so gutless! like it has a horrible miss. any ideas what could be causing this? car doesnt make qny weird noises or burn any fuids. but if while driving i mash the pedal trans down shifts and it revs and sounds like i should be doing 100 mph instead of 25 mph. car honestly feels like something is dragging but rolls nice and smooth nothing appears tobe dragging. im stumped