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Old 02-04-2013, 05:56 PM   #1 (permalink)
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Default 289 intakes

I got the option between 3 intakes for my otherwise stock 289. A Holley
Dominator open plane, edelbrock open plane, and a edwlbrock dual plane. Any suggestions?


FORD ALUMINUM INTAKES
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Old 02-04-2013, 06:01 PM   #2 (permalink)
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Stock=dual plane.....

Others are for bigger cams - bigger heads - bigger gears - etc...
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Old 02-04-2013, 06:17 PM   #3 (permalink)
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Unless you're going to go with a big cam and different heads an Edlebrock dual plane will flow better than a stock intake unless you port match the stock intake it to the heads. I have a Performer 289. After installing it, it was a distinct improvement over my stock cast iron 4V intake. There are better, more expensive dual plane intakes. It depends on what you intend to do with your motor down the road. If you plan on keeping it stock an Edlebrock, Holley, Weiend, etc. dual plane will wake up your motor, so will port matching the intake with the heads and the heads with the exhaust. But just for a bolt on solution would be a dual plane alluminum intake with no more than a 500CFM 4V carb on a stock motor.

Last edited by tom991; 02-04-2013 at 06:19 PM. Reason: typo
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Old 02-04-2013, 06:20 PM   #4 (permalink)
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Quote:
Originally Posted by 66kcar View Post
Stock=dual plane.....

Others are for bigger cams - bigger heads - bigger gears - etc...
+1 on the dual plane for a stock application upgrade.
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Old 02-04-2013, 06:45 PM   #5 (permalink)
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I would use none of those but if I had to choose I would go with the Performer dual plane for a mostly stock engine. There are three really good intakes for the small block ford and they are the Stealth, Performer RPM and the Air Gap intake. They will work well on a stock engine and have room to grow if you make upgrades in the future. All three of those intakes can support up to 475 +Horsepower.
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Old 02-04-2013, 07:07 PM   #6 (permalink)
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IMHO, I was never impressed with any of edelbrocks dual-plane units....Offy & Weland use to make the best, but there wa very little difference between and prepped oem intake & the DP intakes as far as performance & drivability.
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Old 02-04-2013, 07:20 PM   #7 (permalink)
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Quote:
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+1 on the dual plane for a stock application upgrade.
+2. If your not going big on cam and carb, then keep it simple and streetable
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Old 02-04-2013, 07:22 PM   #8 (permalink)
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What is a dual plane and open plane? The difference?
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Old 02-04-2013, 08:01 PM   #9 (permalink)
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Basically, the dual plane keeps the "runners" separated (for the most part) all the way to each cylinder. This tends to promote torque over horsepower and make said torque at lower r.p.m.'s. The open manifold does the oposite...high rpm, high horsepower......

Again, just a general idea here - not claiming this is always the case - or that you can't make good power going against this philosophy....you better understand what you are doing though if you want to go that route.
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Old 02-04-2013, 08:07 PM   #10 (permalink)
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The first poster has a link to the different planes---the first three are open plain because they have one big hole in the middle where the carb bolts.. The last one is a dual plane because it is separated. Look closely at the last one in the pic.
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Old 02-04-2013, 08:17 PM   #11 (permalink)
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Thanks - question answered. I hope your answer also helps the initial poster as I might have hijacked the thread. Sorry!
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Old 02-04-2013, 08:22 PM   #12 (permalink)
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To get more detailed in this question, does anyone have a good source showing specific performance gains between the RPM and Air Gap or any of the other Edelbrock offerings?

I too apologize if this is hijacking the original thread.
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Old 02-04-2013, 08:37 PM   #13 (permalink)
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The Holley is an old design at this point...single plane and small runners. Modern day dual plane intakes are far superior. Unless you are running a highly modified engine with the proper components to match a single plane intake I wouldn't run one. A dual plane Eddy RPM or air gap would be my suggestion if you are going to be using any other performance upgrades. An Eddy Performer is only for stock type builds IMO.
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Old 02-04-2013, 08:40 PM   #14 (permalink)
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Quote:
Originally Posted by patrickstapler View Post
To get more detailed in this question, does anyone have a good source showing specific performance gains between the RPM and Air Gap or any of the other Edelbrock offerings?

I too apologize if this is hijacking the original thread.
Different engine combinations will yield different results. You have to match your intake to the rest of your build.
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Old 02-04-2013, 08:48 PM   #15 (permalink)
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Quote:
Originally Posted by patrickstapler View Post
To get more detailed in this question, does anyone have a good source showing specific performance gains between the RPM and Air Gap or any of the other Edelbrock offerings?

I too apologize if this is hijacking the original thread.
On the 289/302 the RPM and the Air Gap are very close to the same intake. On a performance build when going over 450HP like on a well built 347 the Air Gap is only good for a few HP and Torque over the RPM. For most builds the RPM or Stealth is the best bang for the buck if buying new. The Air Gap is not worth the Extra Cost unless you can find a good deal on a used intake.
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