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Intake choice

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Old Aug 16, 2011 | 07:08 AM
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Default Intake choice

I'll be dropping a stock 2005 6.0 w 317 heads into my 79 malibu. 80% strip 20% street, 750 carb, 3500 stall, 4.10 gears, TH350


Should I go dual or single plane?

Will I be losing too much low/mid range if I throw a single plane on a stock motor?

I'd like to go single so I dont have to sell and buy new, but I'm new to this and not sure how these engines react yet.

THANKS
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Old Aug 16, 2011 | 08:52 AM
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I would go with the single plane and they look better to.
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Old Aug 16, 2011 | 08:53 AM
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For your purposes, the Victor Jr. will quite likely be your best choice. How much cam?
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Old Aug 17, 2011 | 06:35 AM
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Originally Posted by speedtigger
. How much cam?
Just stock for now.

01-04 6.0 12561721 196/207 .467/.479 116
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Old Aug 17, 2011 | 06:45 AM
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Originally Posted by ls1inmy79
Just stock for now.

01-04 6.0 12561721 196/207 .467/.479 116
If you absolutely have no intention of going bigger on the cam, then you could go dual plane, but when you say this vehicle is destined for 80% strip use, I can't help but think that a cam is in your near future. If I am right about that, then I would still get the Victor Jr. for that application.
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Old Aug 17, 2011 | 09:44 AM
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Orrrrrrr you can get a mast intake manifold I put one on my 402 lq4 I love it lol on my way to the dyno right now actually
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Old Aug 17, 2011 | 12:58 PM
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Originally Posted by SteelCityMaro
Orrrrrrr you can get a mast intake manifold I put one on my 402 lq4 I love it lol on my way to the dyno right now actually

That would be nice but not for $1500 Holy Crap!
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Old Aug 17, 2011 | 01:20 PM
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Yea it took me a chunk of change but other than sheet metal it's the best thing out there but if you are going to keep doing **** to it down the road get a Vic jr they have some meat on them so you can port the he'll out of it good luck man
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Old Aug 17, 2011 | 01:23 PM
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OP whatever intake u end up going with make sure u get the MSD box not the edel one
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Old Aug 17, 2011 | 01:35 PM
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Yea good call the Edel Brock box is worthless I hate even talking about STAY AWAY FROM IT
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Old Aug 17, 2011 | 02:46 PM
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Originally Posted by Ravenous T\A
OP whatever intake u end up going with make sure u get the MSD box not the edel one
Thanks, I've heard that from some other people as well.

And yes I do plan on upgrades in the future, I just want to start with a base and go from there. Looks like I'll be choosing the Vic jr.
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Old Aug 17, 2011 | 04:55 PM
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No reason to throw the motor in without doing a cam first. You'll just end up yanking it up later on.
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Old Aug 17, 2011 | 05:10 PM
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Going from EFI to a single plane carb will boost your low end. Mid range will drop slightly but not much. There have been multiple car mag tests that all show this.
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Old Aug 17, 2011 | 05:27 PM
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^^^^What he said. I'm going to be using a single plane on the 5.3, this is just sitting on there until i get everything cleaned up. sorry for the crappy iphone pic think i got some oil on the lense.
Attached Thumbnails Intake choice-img_0635.jpg  
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Old Aug 17, 2011 | 06:11 PM
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I have Vic Jrs on my cammed 6.0 and 5.3 in my Camaro and TA, but the 5.3 going in my 94 GMC with no cam is getting a Performer, and if you do plan on a cam and just refuse to do one right now the Vic Jr will work fine, but it would like the dual plane better till you get a cam.
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Old Aug 17, 2011 | 11:40 PM
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Originally Posted by Pop N Wood
Going from EFI to a single plane carb will boost your low end. Mid range will drop slightly but not much. There have been multiple car mag tests that all show this.
That is exactly backwards. Single planes will have lower torque than a good injection intake or a dual plane carb intake. Where the single plane shines is on the top end.
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Old Aug 18, 2011 | 06:58 AM
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Exactly, the dual plane i think punks EFi though.
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Old Aug 18, 2011 | 07:23 AM
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Originally Posted by speedtigger
That is exactly backwards. Single planes will have lower torque than a good injection intake or a dual plane carb intake. Where the single plane shines is on the top end.
Well, no actually it isn't. Carbs pick up low end torque compared to EFI, even with a single plane (vc jr in this case)

http://www.hotrod.com/techarticles/e...m_hi_lift.html


I swear I originally got this link from one of your posts.

Last edited by Pop N Wood; Aug 18, 2011 at 07:29 AM.
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Old Aug 18, 2011 | 09:09 AM
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Originally Posted by Pop N Wood
Well, no actually it isn't. Carbs pick up low end torque compared to EFI, even with a single plane (vc jr in this case)

http://www.hotrod.com/techarticles/e...m_hi_lift.html


I swear I originally got this link from one of your posts.
You are not looking closely enough at the information. The dual plane Performer RPM has more torque than the EFI intake. But, the single plane Victor Jr. has less.
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Old Aug 18, 2011 | 12:05 PM
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Originally Posted by speedtigger
You are not looking closely enough at the information. The dual plane Performer RPM has more torque than the EFI intake. But, the single plane Victor Jr. has less.
There wasn't a dual plane intake involved in the tests.

For the carbureted tests, we used a Holley HP 950-cfm carburetor on Edelbrock's new single-plane Victor Jr. intake for rectangular-port heads, plus a programmable MSD box to run the ignition coils.
Here is the summary from the article.

What did make us sit up and take notice was how well the Holley HP carb and Edelbrock Victor single-plane performed down low. It was only in the midrange that EFI surpassed the carb, particularly with the XER273 grind. Yet you could expect to pick up at least another five midrange numbers on a carbureted application by having these profiles custom-ground with a narrower, 109-degree LSA, which usually helps the midrange and picks up the numbers from the peak torque to peak power rpm points
Am I missing something?
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