We have to pour a little fuel into the carb to get it to start. It runs great on the track, but while the car is idling, there's no fuel coming through the squirter when you hit the pedal. When the car is off the same thing happens, hit the gas and nothing at the squirter. With the bowl & metering block off, I send WD40 through the carb, but nothing comes out of the squirter. Any ideas? Thank you.