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Old 06-14-2018, 08:23 PM
AJ Brooklyn AJ Brooklyn is offline
230 Tornado
 
Join Date: Sep 18, 2017
Location: NY
Posts: 1
Intake manifold - Edelbrock vs stock ?

Hello to all,
I have stock 1983 J10 with a 360 in it, has a stock intake manifold with 500 cfm Holley 2bbl, do you think it will run better with an Edelbrock 2131 ?
Also planning on ditching the Y pipe and doing duel exhaust but that would be the extent of my performance mods.
Thanks for your insight.
Regards, AJ
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  #2  
Old 06-15-2018, 11:04 AM
rang-a-stang's Avatar
rang-a-stang rang-a-stang is offline
360 AMC
 
Join Date: Oct 31, 2016
Location: Camarillo, CA
Posts: 2,859
Here's a good thread someone else just asked on it:
http://www.ifsja.org/forums/vb/showthread.php?t=185404

I bought a used Performer for mine. They are on Craigslist and Ebay all the time. If you don't have to smog, you can find the non-EGR Performers for about $150. Carbs are dirt cheap these days if you are willing to rebuild it yourself (like $50 for a Carter AFB).

I would do the duels first. You'll notice it a lot more.
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  #3  
Old 07-03-2018, 03:02 PM
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asphaltrockdweller asphaltrockdweller is offline
350 Buick
 
Join Date: Jul 09, 2009
Posts: 1,097
Rang-a-stang has a really nice Offenhauser manifold for sale. In fact he has the valve covers that go with that.
If you do dual Exhaust you will want to have it exit out the sides, and not straight back.
When I did mine it exited in front of the rear wheels. I also did a crossover tube as well.
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Old 07-31-2018, 11:44 PM
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FSJunkie FSJunkie is offline
The Nigel Tufnel of the FSJ world.
 
Join Date: Jan 09, 2011
Location: Not The Hot Part, Arizona
Posts: 3,973
The Edelbrock has more benefit from being lighter than from making more horsepower.
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I love how arguements end as soon as Ristow comments. Ristow is right...again.
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Old 03-18-2019, 05:30 AM
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rockosocko rockosocko is offline
232 I6
 
Join Date: Jun 20, 2014
Location: NW, MS 'Yall
Posts: 213
Not trying to be silly, but what do you mean by "RUN BETTER"?

Is the motor 'stock'?
What's your gear ratio?
Auto or manual trans?
Has it been sitting with 'ol gas' in it for a year or so?
When was the last time it had a tune up? (and what was changed out)
A bad advance in the distributor, or just a worn out one can kill performance just as a bad induction system would. Put a vacuum gauge on it and see what it reads..

On my 81 cherokee S (360/auto) I ran 2.5" pipes straight down from stock manifolds and curved out through the rear of the front leaf springs, then used 33" glass pack style mufflers next to the frame under the rockers, and turn downs.
Just a noticeable tone and not real loud, even at cruise (50-60mph, 3.31 gears)
Plus, keeps heat away from the trans

My intake is an Edelbrock SP2P that I got off a member NIB.
It's got the smaller ports for higher velocity, and just an ordinary Holly 600 vacuum secondary with a 7.5 power valve.
I was getting 17mpg if I kept it under 53-57ish MPH! But once I got to around 60+ it dropped to around 10-13.. (I don't need 4wd here, so I took the front drive shaft out)

There might be pics in one of my threads a few years back.

E
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Old 06-30-2019, 01:16 PM
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DBX11 DBX11 is offline
232 I6
 
Join Date: May 18, 2009
Location: Northern Kentucky
Posts: 208
Just swapped a performer and 1405 over from a stock 4bbl/4350 it made a noticeable change revs up faster and more seat of the pants hp. My 78 is fast for a full time 4wd. I like it !
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