I just a quick and easy question for everyone. I'm planning on running the stage one map on the turbo xs website and was wondering what to do with the srew on top of the ABC valve head. The directions from turbo xs don't seem to say anything about it. I imagen this srew has to do with adjusting the amount of pressure. Well thanks for the help. Also I should not that this is a used utec and therefore I need to know where the srew should be at for a stage one set up. Thanks again.