Need carb help, primaries are flooding carb!

[curtg21]

So I'm driving down the road and car floods out. After waiting 2hours for tow I got it home and had my brother look at the carb while I tried to keep it running. He noticed that the primary boosters were throwing all kinds of fuel out eventhough the engine was just off idle. I have no clue why they are coming on so soon. Any help would be greatly appreciated. Carb is a holley dbl pumper.

AAA sucks!!! 40 minutes to them is 7200 seconds in real people time. :mad:

[Dano Moparo]

You got something stuck in there. Tap on the side of the bowl with a wrench and maybe it will free it up. Otherwise it looks like its time for a rebuild.

[74javelin]

sound like a stuck fuel float or a stuck or bad needle valve.

[Suicidal Racing]

rebuild kit is like 35$..it not hard to do either i just did mine and i really never fucked with a carb beside basic tunning.just make sure u do the steps in order.also u might want to do it over a catch can or something of that sort because a shit load of gas will come out when u start to tare it down.get something to put all the parts in.a seperated tray works well.

[Duceanahalf]

Check for garbage in the needle.

[curtg21]

fuel is gushing out of the primary boosters at idle. have change all needle/seats and new gaskets. fuel bowl level is correct.

[Suicidal Racing]

is it coming out the vent tubes?

[HerHotRod]

Check for garbage in the needle.

I was going to say the same thing. I had it happen to me and left me stuck on the side of the road as well before. But if you checked it already then :dunno:

[Frankie]

Doesn't a blown powervalve produce the same sort of symptoms? When I ate the one in my 750, that thing would just supersoak my engine.

[curtg21]

I have replaced the power valve too. Since this is my daily driver I purchased a new carb and will keep the old for backup if I can fix it. Someone on another forum suggested the problem is with the high speed airbleeds. So I will try that next.

[Dano Moparo]

Is it a holley? I gave up on them a couple years ago. I don't hate holleys, I just hate dinking with them. I bought a brand new HP 650 a fews years back, Ed at Gearhead tells me it should flow like a 750. It flowed more like a 1150. :lol: I never could get it to stop dumping fuel. Nothing worse than taking a brand new carb apart 15 times trying different combo's. So I went with a E-brock 750. I even let a buddy try it on his BB Chevy drag car and he gave it back. :lol:

[Frankie]

Yeah, my Holley was a pain. I've got an EB 650 on my 350 and a Demon 750 sitting up in the closet for the 383. Hopefully the Demon is easier to tune than the Holley was.

[Dano Moparo]

Guys I know that have Demon's, love them. And they look cool too.

[Frankie]

Guys I know that have Demon's, love them. And they look cool too.

Yeah, it does look pretty cool. I paid <$40 for it off this ricer kid, so I couldn't really be too picky, you know? It's a 750 with mechanical secondaries, so it's a little much for the 383, but I might be able to tune it on.

[curtg21]

yeah its a holley, for all out power it's hard to beat. For a daily driver the eb is more reliable and doesn't sacrafice much power

[Suicidal Racing]

i got a holley 750 that cam off my 327 witch ran 6.58 in the 1/8 i'm selling it for 300$ i just rebuilt it like 2 months ago but it has no runs or street time on it since i sold the rolling chassis alil bit after i put it back on the car.it has 72 jets in the front and 78 in the rear.p.m me and we can maybe work out a deal.i have no use for it i'm going to run a 1050 on my next small block.