I found this intake manifold for 2 x Weber DCNF carburettors from ebay.de and had to buy it. I heard that it's propably made by Alquati or atleast it's a copy of one.
I bought also a pair of Weber 36 DCNF's. They have 29mm chokes and too big nozzles for the car but it runs pretty ok with them too.
I have to buy ones that fit when I have time and money to do so. We had to make a hole in the hood for the freeflow air filters and somesort of scoop.
It ain't pretty but does it's job :)