ok well after i got my car back from getting the cam swapped i havnt had 2nd or 4th gear since. i figured my mechanic being the douche bag that he is took it out, got rough with it, and tore it up. but a few people that i have talked to said that a vacume leak on the intake manifold could cause this problem. i checked all the lines to make sure they are plugged up which they are but i cant tell if any of the lines themselves are messed up because my intake elbow is ripped and its too loud for me to hear anything else. so i was wondering what people on here thought and if it is possible maybe which line i should check. thanks!