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Hi, I've been struggling with my Weber carb for a while now, and I'm getting a bit bored of it. I have a DMTL 32/34 on a Mk2 Polo 2G engine, which is stock. Jetted as (from left to right, as seen from the front of the car, looking towards the back, with the throttle cable on the left): 70 | 185 - F30 - 120 | 155 - F22 - 100 | 45 Problems: All of these are on a hot engine with no choke. At Idle: No idle unless the mixture screw is 2.5 turns out. It's a little unstable but it's not obviously hunting (could be normal?) Coming off idle: Poor throttle response - 0.5 second delay, followed by a noticable lurch forward. Throttle feels like an on-off switch in low gears. Slowly opening to full throttle: Loss of power as second stage opens up, but no obvious misfire. Quickly opening to full throttle: Car hesitates, then lurches forward. I have tried: Searching for vacuum leaks. I have been spraying carb cleaner at the base of the carb, and at the hose connections. Nothing obvious. Timing. Ignition timing has been set and checked, with the vac advance unplugged and capped off. Twiddling the idle mixture screw. Highest idle speed is about 2.5-3 turns out. Cleaning. I have had the entire carb apart and thoroughly sprayed everything with carb cleaner. Float valve works. No obvious blockages. Mixture screw is air tight. Accelerator pump seems to work correctly and doesn't leak. Questions... At what point am I looking at jetting issues rather than something else? I have the Pierburg's old swirl pot (?) connected up and cable tied in place. So far I have the fuel going in at the top, the return in the middle, and the line off to the carb at the bottom. What's the proper way to connect it up?