Just a thought. If 110 is leaded, you sniffer in the pipe will get clogged very quickly "I thnk". I thought that A/F meters don't like leaded gas. Anyone know for sure?
That is correct and it says that in the instructions for the guages.
Mine did anyway.
It says if you run leaded fuel to use the guage for tuning only and then remove the sensor and cap the bung.