I took my pcv system off and went to a breather in the cap on my 402 and all hell broke loose ... now its hard to start when it does start the idle dips like hell .....its bucking a surging really bad now , and when i cluth it there is like the throttle drops *** like the ( not sure the term) air cracker is gone or what ever holds the idle a little high until the vehicle stops so know when i clutch the car it it drops to 500 rpm then up to 1200 for like 25 seconds before holding the idle!!!!!!!!!!!!!!!!!!!!!!!!! I have check for vaccum leaks cant find **** ? what did i do here .

 

When you removed the PCV system you changed the air dynamics of the engine at idle, if you have scanning capability check your IAC counts, probably maxxed out.

 

Did you cap everything that the pcv was leading to?