I have a Holley 5200 two barrel on the 1.6 Mazda motor in my Festy. It is pretty much the same thing as a Weber 32/36... it has a homemade adapter plate, I don't have any great pictures.. but it works pretty darned well... so I would think it wouldn't be a big deal to adapt one to a Zuk 1.6...
The 5200 was used on a lot of engines.. this one actually came off of an old Vega... with the iron duke in it.
They are readily available and not too expensive.. easily tuned
Hard to see in this pic... sorry