[Dick M]

The only product I could find to stop the same leak was the copper coat spray one uses to seal a head gasket. It can be also used on carb gaskets, hence, it works with gas.

Take the carb off of the car, separate the bottom half of the carb from the top half, drain all gas out and make sure the carb is dry. You can then take the GAV needle our of the carb housing. I found it best to spray the copper coat onto an artist brush to apply the copper coat. Use the brush to coat both the threads on the GAV and the carb housing. Replace the GAV into the housing when it is still wet with copper coat and be sure it is tight. Let it sit overnight. You should be good to go.