[PeteF]

After long storage, I put a small funnel in the bowl vent tubes. Remove the sight plugs, (if you have a Holley) and slowly pour gas from a small cup into each vent tube. When you see the level rise to the sight plug, reinstall plugs and start engine. I have also seen people use a syringe that measures the right amount of gas for each bowl, injected into each vent tube.