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idle screws edelbrock 600 4 barrell carb

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Old 06-17-2014, 01:02 PM
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WhiteRook
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Default idle screws edelbrock 600 4 barrell carb

if you run your idle screws all the way in and it doesnt kill the engine , what is wrong?
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Old 02-21-2015, 08:21 AM
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Is the spring under the screw binding the coils before it bottoms out? it could also be there is not a seat under the idle screw. The screws are made to set the mixture but not completely close it. So it could be they are not seating on a solid surface when screwed all the way in.

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Old 02-21-2015, 09:23 AM
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thats a flaw in the carb , i should have kept the thermoquad , because this carb is designed for a chevy 350.
the spacer that they provide to go from spread bore to square , is also a problem. this 440 is a spread and it has to
have a spread bore carb , i think thats a big part of the problem
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Old 02-21-2015, 09:46 AM
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Think you are right. Those spacers are a band aid to get you by but not the best solution. The carb for the 350 Chevy should have also been a spread bore. Maybe they don't make a spread bore base in the Edelbrock line. Time to spring for a Holley or put EFI on it :-)

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Old 02-21-2015, 01:13 PM
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yea , i could go holley , i had a 1974 charger with a 400 engine wich had a holley 4160 on it.
this engine is a 1973 440 , that i transplanted into a 1967 charger. the thermoquad was the stock carb, but i couldnt
figure out how to setup the dang thing. i guess many folks have trouble with em. THE thermo comes with this thick
paper composite base gasket , that has the spread slots cut into it. to match the intake . all edel b carbs are , i believe
for square B INTAKES only. thats so you buy the intake from them with it. NO THANKS.
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Old 02-21-2015, 01:50 PM
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The folks has a 67 Charger 383 4bbl when I was a kid. SWEET ride. Spalding Dodge did some work on it. Had a dual point dist, headers, cam. I think the old thermoquads got loose around the shafts the butterflys are mounted to at the base plate. Just like a lot of quadra jets. Once they suck air there they never idle worth a damn. If my Dad was living he could set one up. People used to bring them by the house all the time in the 70's. It's a skill I wish I would have gotten from him. I can rebuild a holley or a quadrajunk lol

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Old 02-22-2015, 08:33 AM
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yup , the 383 was a great engine , i think they produced 3 million of em. , too bad my charger came with a 318.
wich just didnt have enough power , for a big ole tank like the 67 charger.
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