Ok. So I was hearing some clicking from the vale train and I decided to adjust the valves when the engine was running. I did the whole start the engine, lossen the rocker until it starts clicking, tighten it util it stops clicking and then turn it 1/4 to 1/2 of a turn. My problem is now under acceleration the car start popping and dying. I also turned up the idle screw just a 1/4 turn. The car didn't do this before I adjusted the idle screw and the valves? Did I do it wrong? Why would the car die while driving on the freeway or under hard acceleration?