New 1920 carb replacement? Who wants to be the first to try one?

Interesting that they copy the Holley 1920 design almost exactly, though perhaps carburetor design hasn't changed much in 50 years. Actually, in motorcycles where some are still used (or were until recently like Ninja 250 for U.S. market), they have a variable throat area ("slide") which is what I recall was the automotive Predator carburetor's claim to fame, and also enrichment during rapid deceleration to avoid pops. I don't see a bowl vent, which I had on my 1969 Holley 1920. I think later ones plumbed the vent to a charcoal canister. It appears to have a sight glass to verify the fuel level, which is great. In the past, you had to remove the "economizer" (3 screw thingie on top) to measure the fuel level. That part actually enriches the mixture under certain conditions, which I think makes it equivalent to the "power valve" in 4 bbl Holleys.