Is it leaking, seeping or weeping?
If leaking, drips or more, it probably needs a tear down, good cleaning and relacing the needles and seats. If it is seeping and or weeping you may be able to stop that by tightening the fuel bowl screws a little bit, not a bunch so you don't strip or break the bowl screws. Both of those conditions are caused by the fuel bowl gaskets shrinking with under hood heat and age ITHS