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  #16 (permalink)  
Old 04-03-2013, 05:24 PM
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Strange, the people are correct . At 2.5 psi of fuel pressure , the needle should remain on the seat.

The correct initial float setting , if the nut is grabbing the adjustment collar, would only allow fuel to drip out the bowl when the carb is knocked on the side.

If it is operating in some rough idle or hill area adding a spring in the needle and seat will help close it to maintain float height.

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Old 04-03-2013, 06:26 PM
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Yes sir, i would have thought at 2.5 psi, there shouldn't be any fuel coming out the vents.
after she cranked up the 1st time and i was breaking in cam, she wasn't sounding quite right. (2,000-2,500 rpm, total timing @ 36*). when we shut er down, i changed oil & filter and pulled bowls to check float levels. they were so low from trying to get intank pump to work, suprised any fuel actually in bowl. after settin dry adj.(yeh,shulda checked before), she cranked & runs great.
sbc thru set of flowmasters....sweet music.
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Old 04-03-2013, 06:38 PM
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Did you check the float height with the needle closed? To see how high the float needs to be for reference, and verify seat function.

I think there is a tang on the floats long arm to adjust the leverage on the needle to close the seat. Check the tang. During your initial setting, you could have smashed it bending it in a manner that it will not close the needle.
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Old 04-03-2013, 11:13 PM
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If I was able to help, I can only say it was a pleasure. One day, I'll post with an issue and you'll be able to help. That is what this site seems to be all about.

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Old 04-04-2013, 04:58 AM
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Holley's Street Avenger 4-barrel carbs give you trouble-free performance in a good-looking, easy-to-install package. They're calibrated to give you the performance that you need, without the tuning headaches involved with other carbs. And all of this comes with a silver finish that looks as good as it performs! They're available in many different sizes for a variety of engines.
------------------
2013 MERCEDES BENZ SL-CLASS
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Old 04-04-2013, 06:00 PM
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Wow. . . Is that quoted right out of a magazine ad?

PatM
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