[Sunnybrook Farm]

I turn my GAV several times, it really makes a difference. If your car starts and runs fine then it may be open too far once the engine is warm. Just turn it clockwise and keep track of how far it turns until it stops so you can put it back there when starting. It really depends on the individual carb as to where it should be run going down the road, assuming your carb matches a stock one, it is about 1/4 turn counter clockwise from stop. When you get to stop on turning it, don't force it as it will cut a groove in the brass. I have one all apart if you want to look at what is going on inside the carburetor.