I have a small problem with some dellorto's - number is DHLA G. The problem is that when idling, one side of the carby will spit fuel out of the throat and it slowly pools in the air box area. This ONLY occurs at idle and when revved, the fuel disappears and car runs fine. It's only just started happening recently and the carby's have had a kit put through them only a year and a half or so ago. Additionally, the mixture for that particular throat is very rich (mixture screw done up all the way) and the plug usually fouls up making it stumble at take off and makes it hard to start. I have taken the jets out and cleaned them, also cleaned the mixture adjustment screws and checked the float level. After taking off and picking up revs, the car will run fine. There is no backfiring out of the carby or anything and all the other plugs look good. Car is an Alfetta by the way. If anyone could help it would be greatly appreciated.