Maybe it needs a Smart Carb?
The claim is 25-30% fuel savings and 8-14% more power. If nothing else it's interesting for the metering rod that replaces a needle jet. Because it uses lee-side low pressure to draw fuel, it automagically compensates for altitude. And the fuel mixture ratio is adjustable on the fly.
Their 38mm model sounds like a match for my 1600cc boxer motor.