engine running rich

[Scat Pack Fever]

hello,

I bought a new edelbrock 600 cfm carb for my 360. I worked great for about a week. I had it dialed in with a vacuum gauge and it idled smooth and didnt run rich at all. Then, I went out today and it was running real rich, the engine was shaking, and I noticed gas leaking around the pump on the carb. After I turned the engine off I saw gas comming out of the primary jets. I have no idea what happened. Here is the other weird thing. I can pull 2 plug wires and it doesnt seem to affect the way the engine idles. any 2 wires. I have it timmed at tdc. It isnt back firing and it is flooding after I turn it off becuase the fuel is pouring out of the jets and when I open the throttle, all the gas dumps in the intake and it takes a while to start. I have tired turning the air fuel screws, but there isnt much affect.

[cudabob496]

don't know much about eddy's, but I assume your fuel pressure is no higher than say 7 psi.
Or maybe a stuck float?

[Chryco Psycho]

one of 2 things , dirt into the needle & seats that limits the fuel flow into the bowls  did you leave out the fuel filter ?
 Or as Bob suggests the fuel pressure could be too high , 7 psi is max 5.5-6 psi recommended .
 It is flooding the engine , I would pull all the spark plugs & crank the engine over to get rid of the extra fuel AFter fixing the carb & possible replace or at least clean the plugs with brake clean

[Scat Pack Fever]

ok cool. I will check both. I'm pretty sure I can check fule pressure with my vac gauge. One of my rubber fuel lines had some pieces that diteriorated on the inside and am guessing a piece of rubber may have made its way into the carb. I didnt know it was bad until I pulled it off.

[cudabob496]

Ya, have the only fuel filter within a few feet of the carb inlet.

[Scat Pack Fever]

I took the carb apart and looked clean. nothing seemed to be blocking the needle and seat. I did notice one of the floats hangs down almost a half inch lower than the other when you hold up the top part of the carb. If I flip it upside down the floats are at the same level (both pushing in the needles). Not sure what could have cause it. I was careful when I pulled the pin out of the float to check the needle.

[cudabob496]

at least on a Holley, floats should be same height.
make sure one float does not have a hole that allows gas to leak in.
Set proper float level, and maybe you'll be good to go.

https://www.youtube.com/watch?v=s-ab054I5cI

https://www.youtube.com/watch?v=ZnJxWEK_GFw

[Scat Pack Fever]

Awesome! Thanks!

[Chryco Psycho]

The other thing to look at is the port the brake booster connects to can lean out 2 cylinders that the port feeds if the booster is leaking internally