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Edelbrock Carb problem

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Old Oct 7, 2011 | 12:57 PM
  #21  
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The OP has an Edelbrock carb. Isn't an AFB made by Carter? Or are they so similar as to be considered identical?
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Old Oct 7, 2011 | 01:12 PM
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AFB is not a performance carb, no matter what Edelbrock calls it. There is a reason that GM switched to the Q-Jet. If your Q-Jet runs great, why not stick with that?
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Old Oct 7, 2011 | 05:04 PM
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Great learning experience here. The net is to break the carb down, soak it in thinner or carb cleaner for a day or so blow it out and put back to gether. Bet it will work then. As Ben said ck the jets to see where they are from the factory, maybe too rich. Thanks all.

JP
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Old Oct 8, 2011 | 08:41 AM
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My Edel 750cfm is doing something very similar. Sat for years and is now very rich.

Rebuilt many times, floats checked, leaned out jets two stages, no sign of vacuum leak, still no better.

Keep us posted. Even if soaking doesn't work. I would like to avoid buying a new one.

Thanks
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Old Oct 8, 2011 | 08:43 AM
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Edelbrock bought Carter, and they are interchangeable
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Old Oct 8, 2011 | 10:44 AM
  #26  
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I didn't know that. I learn something most everyday.
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Old Oct 8, 2011 | 12:12 PM
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I wonder if the Edlelbrock carbs are more prone to getting sludged up when they sit for more than a couple of weeks? I have several Q-Jets that have sat for a year and run fine within a couple of minutes of fuel flushing through them.
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Old Oct 13, 2011 | 07:34 PM
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Thanks to all for the input. I removed the idle screws, the step up rod covers and if there was a hole, I squirted carb cleaner liberally. When I put the carb back on --- presto the vacuum jumped from 15 to 18" and the erratic ideling and vacuum jumping all over was gone. I was the victim of gas drying out in the carb and forming varnish in the ports.
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Old Oct 13, 2011 | 08:19 PM
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Originally Posted by bigvette1
I wonder if the Edlelbrock carbs are more prone to getting sludged up when they sit for more than a couple of weeks? I have several Q-Jets that have sat for a year and run fine within a couple of minutes of fuel flushing through them.
Never had this problem with my Edel, but as others have said watch the fuel pressure.
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Old Oct 14, 2011 | 05:25 AM
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I have a 1411 on my 1975 350.
Cam, Heads and headers.
It runs pretty good.

I have 1200 miles on the rebuilt engine and it runs pretty strong.

It may be a little rich but it's too early to tell.

Ill put it on a Dyno when it hits 3000 miles, but so far so good.

Ralph
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