Good point...I was ready to increase the fuel line before the basic testing started.But the stock gas line is some where between 5/16 and 1/4 " on a Dazon.The new Tygon gas line seems to be slightly larger still and will be used on the next test trials.Since the pumper is spraying gas into the carb before the slide even moves the lean stumble down low has vanished. The motor is not starving for fuel but instead its simply burning all of it threw better metering.