Yea, my old school labtop couldn't displayed the page. ThanksHow to set ratio is in the link I posted above. This is from that:
Set the gain to 5 by turning the MODE knob until 1234M is displayed. Hold the MODE knob until 1234M blinks, then dial the VOLUME knob to 5. Press the MODE knob to lock in the setting.
Note that I inadvertently set the gain to 60 one time and this caused pre-ignition (detonation) in my car because the boost was coming on too quickly.
You have four preset boost levels you can program (plus stock boost level when the unit is set to OFF).
To program each boost level, turn the MODE knob until the desired boost preset (1 to 4) is displayed. Hold the MODE knob until the preset (1-4) blinks. Rotate the VOLUME knob to the desired boost level (0-100). Note that this represents a ratio (0=stock boost, 100=maximum boost possible).