Fuel dripping from boosters??!

[70Maverick]

What causes fuel to drip from the boosters on a holley carb. I was running my car last nite and i noticed fuel dribbling from the boosters while it was running. It wasn't consistent and it wasn't much but it was there. Is a little normal? After I shut it down it still dripped a little also. Is my fuel press. 2 high? I'm running about 8psi, or are my needle and seats weak? Any ideas? Thanks.

[Jim]

I had that happen a couple times. My problem was caused by the needle sticking open.

[markstang]

most of the time it's because you are past the idel & getting into the midrange. I would bet your throttle blades are open to far. most of the time if your neddel & seat can't hold back the 8psi, then gas will flow out the vent tubes on top of the carb.

[T-Bagger]

bad power valve does it also

[2slow4u]

i had that happen and it was the float was sticking.

[1SLO5.0]

Three things and only three things will cause this.

1. Float level too high (caused by misadjustment, sticky needle and seat and/or bad float)
2. idle screw turned up too high
3. Fuel pressure too high

[UPdragracer]

Hey John is it all the boosters or just the secondary side's ?
If it is all the boosters I'd guess pressure is too high .
New needles and seat's work miracles LOL!!! be sure and get the big ones not the little street needle valves .
If the secondary side is drooling take the carb off and turn it upside down and look for the secondary side stopper set screw for the secondary blades .
back it off til the blades just close all the way and open them up 1/4 turn . that should take the vac signal away from the secondary boosters at idle.
I like the secondary's almost shut with a double pumper carb .
with a vac. secondary carb I like the secondary blades open farther to reduce the bog inherent with those carbs . I set those at 1/2 to 3/4 turn just to have some air flow before they open at W.O.T. :hello:

[70Maverick]

Alright, thanks guys! I'll see you at the Oct. RSD and gamblers race!