IMPCO's Unique air valve technology precisely meters fuel into the engine upon demand throughout its operating range accurately controlling of the air fuel ratio to optimize exhaust emissions.   

 

The Mixer has the unique ability to create a strong pressure differential from idle thought the entire operating range of the engine.  The system operates below atmospheric pressure and provides greater cold temperature vaporization, for clean and reliable cold starts

 

Air-valve technology employs large orifices in both the mixer and regulator when metering LPG fuel vapour and combined with the mixer’s ability to create a strong negative signal from idle to wide open throttle, it provides excellent resilience to fuel quality issues.