Take note that my post was in regards to a stock Mikuni install. That image configuration for a Weber is 'correct' (bearing in mind the fuel pressure issue that goes with using a Weber) I'm having some issues of my own with the Weber carb I pulled from a wrecked Lancia Beta. I've solved the fuel bowl vent connection but there's some sort of accelerator/vacuum actuator on the opposite side of the throttle linkage. Got me stumped how to rig it up (or even how it works) but I've got a feeling I'll need it when the A/C is operational...