Holley DP Issues

Continuing on in my short(but annoying) list of car problems, I have this. Although I've only driven the car 4 or 5 times, I've had it idling in my yard quite alot. It idles great and all, throttles up and down nicely, but the last time I took it out, I drove around for about 10 minutes, and before I went back home, I got on it one good time. That was all well and good, but when I stopped at the stoplight the car cut off and wouldn't start back up. Me and my friend pushed it into a parking lot and popped the hood, and the carburetor was dripping gas onto the butterflies. We finally got it started again but that was after me holding the secondaries open while my friend started the car. I guess it was really rich. Anyway, when I got home I realized that this has happened the couple other times I've really accelerated. I went out there and turned the key just to get the fuel pump to click on, and see the carb dripping gas. I tapped the fuel bowls, here a little "click" from each one and the dripping stops. Anyone ever have a problem like this? The carb was prof. rebuilt, and doesn't leak anyway. I think the fuel bowls are getting stuck but why would this only happen under heavy acceleration? I know nothing's getting clogged in the carburetor because if the cars not moving I can rev it up lots and nothing will be leaking, it's only when it car moves. I've running ~4.5 psi, any ideas?

i've heard of this happening a few times, but if it happens consistantly you definately have a problem somewhere...what is happening, is when you accelerate hard, the carb is dumping massive amounts of fuel down there, and when you let go of the throttle, the cable shuts the butterfly's really quick, and maybe the carb isn't keepin up or something, and continues to pump the fuel a little bit after, and ends up flooding the engine...i'm not sure what you could do to fix it, cuz i don't know much about the mechanics of a carb, but i'm sure somebody here will help ya out...

The only thing that would make me think otherwise(from what you're saying) is that the carb will just keep dripping gas(and I mean DRIPPING) onto the butterflies until I either tap the bowls and the car moves enough to fix whatever is getting caught. I've taken the bowls off several times and everything looks to be fine, I don't know what's going on. I've been thinking about just selling it and getting the money I paid for it back, but since it's a spreadbore carb on a spreadbore intake, I'm kind of limited to another spreadbore unless I get one of those squarebore adapters...but I've heard the adapters really kill airflow, is that true? If it's negligible, I can deal with the little bit of powerloss until I get a new intake manifold, but if it's a big loss of power, then I'm afraid I'll just have to deal with this leaky thing until I can get the money together to swap the manifold and carb together.

The floats/needle valves are sticking for some reason. Probably dirt that got past the fuel filter or improper assembly fo the carb.

The "click" you are hearing is the needle valve "unsticking" and seating fully again when you rap on the side of th carb. Once they're fully seated again it stops the continual flow of fuel into the carb. It shouldn't be sticky like that.

You're going to have to take off the float bowls and figure out why the floats/needle valves aren't operating smoothly/seating fully and fix it.

i had this problem with my DP...the was some debris that got caught in the needle/seat and drove me up the wall sideways....took out the needle and seat assembly cleaned it out with some carb cleaner and reinstalled it...changed the fuel filter and added an inline filter right next to the carb..then i ran 2 consecutive tanks with fuel injector cleaner through it...(carb safe) and havent had a problem since..this happend at the beginning of spring and put a good 7-8000 miles on it up untill about 3 months ago when i parked it

had that trouble too...the genius that built the motor for the car decided not to have an inline filter going to the carb so the bowls go alot of dirt in them...the funny thing was my carb is a vac secondary and it was dripping gas like a leaky faucet out the secondaries at idle...it was so bad it fouled the plugs to where the car would not run


after a good spray down with carb cleaner and new plugs my car idled great