Need new jets.

[66nightMARE]

The jets on my holley 600 are too big and I believe they are flooding my carb. Where is a good place to order smaller jets?

 

[Cobain03]

stock jets are 64s (mine was anyways). i put in a 71. ran real strong, but flooded. i went to advanced and bought a set of 68s to put in. 7 bucks. the whole kit is expensive. 50 bucks or so.

 

[dennis112]

stock jets are 64s (mine was anyways). i put in a 71. ran real strong, but flooded. i went to advanced and bought a set of 68s to put in. 7 bucks. the whole kit is expensive. 50 bucks or so.

Got my kit from Autozone-$40 and it was in stock.

I figured it was a better bang for my buck because I could move up and down in jet sizes until I find the optimum range.

 

[D.Hearne]

Advance, Autozone and O'Reillys all carry jet packs (2 per pack) in various sizes. What size is in there now, that makes you think they're too big? It could be another problem doing it. Actually it'd be more likely to be something else.

 

[bnickel]

Advance, Autozone and O'Reillys all carry jet packs (2 per pack) in various sizes. What size is in there now, that makes you think they're too big? It could be another problem doing it. Actually it'd be more likely to be something else.

i'd tend to agree here and i'd bet it's probably more like really high float settings that's causing the flooding

 

[66nightMARE]

Well, the previous owner put larger jets in there. Sometimes when the car is off, you can see gas slowly dripping out into the carb.

 

[D.Hearne]

If there's gas dripping into the carb, the floats are set too high or the needle/seats aren't sealing. Take a screw driver and reverse it in your hand and tap firmly on the needle adjuster screws with the handle. That will usually unstick the needle/seat or otherwise known as a stuck float. If that doesn't help, remove the sight plugs (right side of the bowls) and see if any fuel pours out, only a slight bit should seep out if the floats are adjusted correctly. Too much fuel pressure will also force the floats down and open the needle valves. It takes very little pressure and flow to feed a carb. I ran a low pressure/ 30 gal. per hour electric pump to feed a 400+hp 331 topped with 3 Holley 250 cfm carbs. Only time it was every insufficient was when the inline filter plugged between the tank and pump.

 

[Max Power]

As Hearne said, fuel dripping into the carb has nothing to do with jets.

Another thing that could cause that is a fuel pump that is not relieveing pressure properly after shut off.