Fuel dumping from booster venturi

Thanks for the reply. This is a race only car. These came on the motor, they were not my choice due to the lack of everything you just noted. Some of the guys I run with use them with good results. I figured I would give them a try. Also I should note that they have "been gone through by someone with experience" The float levels are right and I have verified this by popping the lids and observing the fuel level. The fuel dumping off idle from only one side has me puzzled. I'm about ready to switch to Holly's and be done with it!