Fuel Dribbling Out the Accelerator Pump Nozzles.
Watch the nozzles at idle and also at a constant higher RPM. Remember that any pumping of the gas will push gas through the nozzles. Any leaking, or dribbling is a problem.
Make sure the pump discharge needle is in place and holding. To test, fill the bowl with fluid (mineral spirits) and while holding the needle down gently pump the accelerator. Fuel should not leak around the needle. If it does, inspect the needle for damage. Seat the needle by hitting it gently with a brass drift punch.
Make sure all vent holes are open.