I'm experiencing a drip from the accelorator pump jet and the primary venturie booster while the engine is ideling, sometimes the secondary venturie booster joins in on the drip. When all are dripping the engine wont idle. I would like to understand how the fuel is getting by the accelorator pump check valve. Is it by way of vacume or some kind of over flow? The fuel pump pressure measured 4 1/2lbs. And the float bowl level seems to be in the middle of the bowl, with the float at level. I have several needle and seat valves and all seem to function. I hope someone has the answer. thanks.