Hi bigted. I've never seen a carburetor like that, with the body sawed off laterally through an aluminium extrusion. With an NC mill to drill the holes, it might be a very practical way to make it in low volume.
A couple of questions occur to me. First, it looks as if pretty much everything except the body and the throttle butterfly is plastic, even the venturi, so it would be interesting to know how it stands up to US "reformulated" fuel (which usually has a substantial ether content). Alcohol might also be a challenge (especially methanol of course), depending on the plastic used. Second, it does not appear to have either a choke or a primer, so I don't know how cold enrichment is handled.
