Might be interested in...
... the "Rich-Lean Safety Sensor"
This Next Generation safety device assures you that a
malfunction in your system will not result in engine damage.
The "Rich-Lean Safety Sensor" calculates air/fuel ratio on
a continuous basis, monitoring the safety of your engine's
operation. If the overall air/fuel ratio drops below 10.5 - 1
or above 13.0 - 1, the sensor relays this information to the
nitrous system, instantly disengaging it. The NX electronic
Air/Fuel Ratio Monitor allows you to track your air/fuel
ratio from the cockpit during nitrous usage.
Have a brand new dual stage Compucar system