Holley Carb question

[gp001]

I installed a new Holley 650(Dbl pumper, mech sec) on my car and set the float levels and idle. I drove the car for about 30 miles that day. The car sat for a few days, then I started it, warmed it up, and went on my way. At the first 2 stops it seemed fined, but at the third stop it began to idle irratically. I nursed it back home (where it stalled). I let it sit for a few hours, started it, and noticed "drips" of gas dripping off the booster venturis into the secondaries (both barrels). I rechecked the float level and even lowered , but it still drips.

Any ideas what would cause this??????????