Use the static screw on top to adjust your idle pressure. The vacuum screw is to set the point where the raising rate begines if i remember correctly. Terry96 Eagle talon ESI Star Stage II - Boost/oil/EGT gauges97 EclipseGreddy header/evo exhaust - Stage 2 6 puck Sprung hub MIBA clutch - Shortened shifter - Koni Yellows w/eibach prokit - Stillen Fr/Rr swaybars - ceramic intake - DEI Keyless entry alarm - Niche 17" ShoksWaiting to be installed: Apexi AFC, HKS EVC IV, 450 Turbo injectors, SFMU/return line, GSX Front brakes (need rotors)