I just bought one of these to try as they are so cheap. Just wondering if anyone has tried one of the copy carbs and what jetting you used for a clone. I'm going to dissasemble clean up choke area as the vent holes have some flashing check the float level then put it on the flowbench to see if it flows more CFM than the mikuni copy carb. I have had great luck with the china mikuni carbs but couldnt resist this one.