Which intake to use on 350 rebuild? - Chevelle Tech
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post #1 of 18 (permalink) Old Jul 5th, 20, 4:25 PM Thread Starter
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Which intake to use on 350 rebuild?

Do I toss the old edelbrock and use an original holley, an old winters, or a new aftermarket? I am considering a rebuild of my 350 which is in a 66 with th350.

I am thinking of installing a 200r4; but may stay with the current 350. Looking for around 400 hp & tq. What would be the advantages or drawbacks? Like installation issues, performance, cost, etc. Thanks


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post #2 of 18 (permalink) Old Jul 6th, 20, 10:27 AM
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Re: Which intake to use on 350 rebuild?

Which Edelbrock do you have ? What carb are you planning to use ?

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post #3 of 18 (permalink) Old Jul 6th, 20, 10:55 AM Thread Starter
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Re: Which intake to use on 350 rebuild?

Current carb is a Edelbrock 1406; but I was thinking of using a holley 3140.

The intake is an Edelbrock from around 1997, I can't seem to find any other identification numbers or stamps.


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post #4 of 18 (permalink) Old Jul 6th, 20, 11:08 AM
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Re: Which intake to use on 350 rebuild?

For a mile street small block, I don't think it matters that much. Any aftermarket dual plane will be fine, and probably not more than 5-10 hp between them.

I would recommend staying away from the air-gap manifolds for a cruiser. Manifold heat is your friend if this is going to be mostly driven around at part throttle.
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post #5 of 18 (permalink) Old Jul 6th, 20, 11:11 AM Thread Starter
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Re: Which intake to use on 350 rebuild?

Would there be any intakes more prone to vacuum leaks or other issues?


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post #6 of 18 (permalink) Old Jul 6th, 20, 11:22 AM
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Re: Which intake to use on 350 rebuild?

I have always had good luck with Edelbrock intakes as far as sealing and working good. If you are going to go with a Holley carb I would use something a little more modern unless you already have the 3140. I would probably use a 3310 or whatever the latest version is myself. The only thing I dont like about the Edelbrock is the hassle to rejet them if needed. The 1406 is only 600 cfm and might be on the edge if you are really planning on 400HP.
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post #7 of 18 (permalink) Old Jul 6th, 20, 11:48 AM Thread Starter
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Re: Which intake to use on 350 rebuild?

Thanks, yes I have a 3140. Isn't the 3140 also a 600 cam?


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post #8 of 18 (permalink) Old Jul 6th, 20, 12:09 PM
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Re: Which intake to use on 350 rebuild?

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Originally Posted by Jim_66SS View Post
Thanks, yes I have a 3140. Isn't the 3140 also a 600 cam?

Not sure. My Holley master parts list only says it came on 396 engine. My 2005 Holley catalog does not list it anywhere either.

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post #9 of 18 (permalink) Old Jul 6th, 20, 1:27 PM Thread Starter
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Re: Which intake to use on 350 rebuild?

Yes it is original to the 66 396 auto. But it just an 4160 vacuum secondary holley from back in the day. Only difference in the 66 327 was the jets. 3140 used on auto 3139 o n manual differences being throttle plate. Same thermo choke set up on 327 and 396.

In fact I recently had the 3140 on my 350 small block swaping it for the edelbrock 4160 to see if the edelbrock carb was contributing to my engine problems.


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post #10 of 18 (permalink) Old Jul 6th, 20, 2:39 PM
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Re: Which intake to use on 350 rebuild?

I would use the Eddy RPM Performer Air Gap. Just a touch smaller than the RPM and should make good power on a 350.
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post #11 of 18 (permalink) Old Jul 6th, 20, 6:29 PM
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Re: Which intake to use on 350 rebuild?

I've been very happy with my Performer RPM --NON-- Air Gap.
Years ago I had an old Performer 2101. That was a super torquey one, great for the street to 5000 rpms.
My non air gap will go to 6k no problem too.
My big block I'm building I'll use a Weiand Stealth.

First car was a 1969 El Camino. .....I miss it, great car.

Currently: 1967 Royal Plum Camaro
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post #12 of 18 (permalink) Old Jul 6th, 20, 6:49 PM
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Re: Which intake to use on 350 rebuild?

Use a regular RPM intake and a Holley 3310.

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post #13 of 18 (permalink) Old Jul 6th, 20, 8:29 PM Thread Starter
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Re: Which intake to use on 350 rebuild?

Do any of the edelbrock intakes accept the old style manual holley choke in the intake?

This is a photo of the current intake. It says edelbrock performer; but I don’t see anything else to identify it. Anyone know what it is. I think that has a provision for the choke in the intake.
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post #14 of 18 (permalink) Old Jul 6th, 20, 9:09 PM
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Re: Which intake to use on 350 rebuild?

Jim, I'd use the 3140 no problem.. If you want you can send it to me and I'll fix it up for you. that divorced choke deal is a pain to set up and get right. I'd change it over to an electric choke. You can use that manifold fine. This deal is exactly what it was made for.

Are you the same Jim from Mn I talked at the Phx GoodGuys show a couple years ago?

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post #15 of 18 (permalink) Old Jul 6th, 20, 9:16 PM
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Re: Which intake to use on 350 rebuild?

Jim, here's a 3140 on ebay right now, just to give you idea what your carb might be worth. That's a really good carb, used on all kinds of performance 327s and 396s including Vettes, which is the price is so high.

https://www.ebay.com/itm/Holley-3140...-/170367587996

for the money he wants that carb should be re-colored. it's cosmetic but still, for $1K?

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