The original carb on my 73 Opel GT project is shot. Somehow the primary is completely fused shut. I've given up and begun looking for a replacement. I found the Weber 32/36 but I'm looking for other options. At this point I'm just trying to get the car to start. Any suggestions on other carbs that might fit and be a bit more available in the states, like the mid 70's Toyota Corola's?