Quadrajet intake gasket is wet, erratic high idle.

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How high is it idiling now?
About 1400 cold, 1000 hot in park. It's a good starting point, but I couldn't adjust the fast idle anymore since the engine and carb had gotten warm, and it's futile because no matter what I set it too on the sbc I have, it will still need tuned for his sbc. I got it in the ball park, that's the best I can do in this situation.
 
About 1400 cold, 1000 hot in park. It's a good starting point, but I couldn't adjust the fast idle anymore since the engine and carb had gotten warm, and it's futile because no matter what I set it too on the sbc I have, it will still need tuned for his sbc. I got it in the ball park, that's the best I can do in this situation.

I think you either have a vacuum leak or something stuck on the fast idle
 
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I'm wondering how you can say something is no good when you really don't know anything about it...I just wish some of them would give up before they mangle and loose parts on a quadrajet.
Steve, I think you took Dan (drogg1) out of context. From my interpretation, he's saying with more guys discarding Q-jets for other carbs(Holleys, Edelbrocks, Demons, etc.) there's more cores floating around .
If I can find a decent core, I would consider going back to a Q-jet. My 600 cfm Holley has been quite reliable over the years, and easy to rebuild. Although I never had a Q-jet on this engine before.
I've had them apart in the past, but never rebuilt one per se.
 
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Steve, I think you took Dan (drogg1) out of context. From my interpretation, he's saying with more guys discarding Q-jets for other carbs(Holleys, Edelbrocks, Demons, etc.) there's more cores floating around .
If I can find a decent core, I would consider going back to a Q-jet. My 600 cfm Holley has been quite reliable over the years, and easy to rebuild. Although I never had a Q-jet on this engine before.
I've had them apart in the past, but never rebuilt one per se.

actually I made a mistake using the word "you" when I didn't mean Dan, I meant whoever is criticizing the quadrajet. Thanks for pointing that out
 
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actually I made a mistake using the word "you" when I didn't mean Dan, I meant whoever is criticizing the quadrajet. Thanks for pointing that out
So you were generalizing...I understand. I do tend to agree with you, though, that Q-jets are a misunderstood carburetor.
 
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My 600 cfm Holley
And that is key. A 600 cfm on a mild 355 is balanced. But most guys jam the biggest carb they can afford on and wonder why it sucks. I had a friend with a '69 Chevelle, 327 and 4 speed. The 327 started life as a 2 barrel so he went with a conservative dual plane aluminum manifold and a Holley 550 cfm and kept the cam IIRC. It ran beautifully because the combination was balanced. Car show idiots laughed at the tiny carb but he had the last laugh getting 20 mpg and superb performance. He rarely had to adjust it because it was working at capacity.
 
And that is key. A 600 cfm on a mild 355 is balanced. But most guys jam the biggest carb they can afford on and wonder why it sucks. I had a friend with a '69 Chevelle, 327 and 4 speed. The 327 started life as a 2 barrel so he went with a conservative dual plane aluminum manifold and a Holley 550 cfm and kept the cam IIRC. It ran beautifully because the combination was balanced. Car show idiots laughed at the tiny carb but he had the last laugh getting 20 mpg and superb performance. He rarely had to adjust it because it was working at capacity.
Mark,
You're absolutely correct, my friend. So many guys tend to over carburate an engine thinking bigger is better. As you stated, the key word is balance. In my case, being that I was running a mild cam, 9.1 compression, dual plane intake, small valves and stock porting... nothing radical, the likely cfm size was 600. It's a great running engine...and I feel is a well balanced combination.
 
And that is key. A 600 cfm on a mild 355 is balanced. But most guys jam the biggest carb they can afford on and wonder why it sucks. I had a friend with a '69 Chevelle, 327 and 4 speed. The 327 started life as a 2 barrel so he went with a conservative dual plane aluminum manifold and a Holley 550 cfm and kept the cam IIRC. It ran beautifully because the combination was balanced. Car show idiots laughed at the tiny carb but he had the last laugh getting 20 mpg and superb performance. He rarely had to adjust it because it was working at capacity.
It's astounding how many people scoff when you tell them "No, your 8.5:1 smogger 350 does NOT need a 750cfm edelbrock. Those parts store guys are LIARS." Oh, fun little thing happened. I had a guy text me about rebuilding a q jet, I give him my price, which many other people have been more than happy to pay (150 - 200 dollars is usually what I charge. Up front, that's how I pay for the parts. Whatever's left is my profit.) he goes on to say that he can just buy a reman qjet from oreillys for 278. I tell him it's in his best interest not to, as generally (not always) those carbs are just a hodge podge of parts just thrown together to get gas into the engine and sold. He then tells me no they aren't, and that he works at Oreillys. He hasn't responded further.
Fun times.
 
1400 rpm and 1000 rpm isn't terrible in park. I run around 1200-1300 and 1000 rpm on my cars in park.
 
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