I found this interesting and wanted to share with other tech enthusiasts that might own older vehicles that wish to go green(ish) with their existing pre-smog v

I found this interesting and wanted to share with other tech enthusiasts that might own older vehicles that wish to go green(ish) with their existing pre-smog vehicles. TL;DW A person took an old Ford and 3D printed a controller enclosure to manage the airflow in a lawn mower carburetor to achieve 40MPG in a vehicle that is arguably sub-optimal for this test.