once you've set the barrel valve with a leakdown guage you adjust the idle rpm with the butterfly opening. When I ran injection I would drive around with barrel valve approximately halfway closed. YOu do NOT want to drive around at 2500rpm!! you will get caught speeding!lol
The reason for the 2500rpm is to raise your idle egt's to 8-900* and get your oil good and hot. This will burn of the moisture/condensation caused by the meth. I highly recommend a good vacuum pump as well and dump the puke tank after warmup. You will be surprised how much water comes out...

ps, not sure about the Rons stuff but with my Enderle also used the fuel shutoff to kill the motor.