Weiand Manifold

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Jul 22, 2006 | 02:30 AM

Melchiah

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From: Phoenix

Weiand Manifold

i have a 67 mustang 289 and i am looking for a new manifold but i dunno which to get the http://store.summitracing.com/partde...3+115&autoviewor the http://store.summitracing.com/partde...3+115&autoview cause i want good power all through the pedal but i do plan to build up my engine later on so whats my best option

Last edited by Melchiah; Jul 22, 2006 at 02:32 AM.

Jul 22, 2006 | 06:44 AM

cjben

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Joined: Apr 2001

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From: Midwest

I would go with the one from idle to 6800. the other one is only rated to 7000 rpm,only 200 more and doesn't come in until 1500. I am running the idle to 6800 on my 78 f100 with a 351w and love it. You have to decide how much time the motor will be spending at the upper rpm ranges before you sacrifice low rpm power. Maybe go for the higher rpm one if you are planning on going to the drag strip with the car.

Jul 22, 2006 | 08:45 AM

smallblock351w

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id go with edelbrocks new performer rpm air gap intake, running one on my 351w and they seem to work great. on summit racings site the part number is edl- 7521

Jul 22, 2006 | 07:36 PM

baddad457

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Joined: May 2003

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From: south louisiana

All these intakes work from idle to whatever rpm you want: (despite what they advertise) Performer RPM (air gap too) Edelbrocks older F4B, Ford's C9OX, A321(current version of the C9OX & F4B) Shelby Cobra highrise dual plane(also the same intake as the previous three) & Weiand's Stealth. Don't buy into the "works from 1500 to whatever" B.S., highrise dual plane carb intakes are not rpm sensitive. I've run too many to know better. They ALL work from idle to what your motor will pull.They will also work well on stock to wild engines. If you want stock performance get the Performer or a factory 4 bbl intake (either the 60's iron version or the mid 80's aluminum 4 bbl Mustang intake) These will also pull from off idle but the power will shut off at around 4500-5000 rpms.

Jul 22, 2006 | 09:25 PM

smallblock351w

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agree with baddad 457 only other thing id say thats nice with the performer rpm air gap is it seperates the ports from the bottome of the intake to make the air going into the motor cooler. in theory anyways hehe.

Jul 23, 2006 | 12:11 PM

ken75ranger

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From: Troy,NY

The stealth is a better all around manifold. If your making a track burner you might want to go to the single plane. Both of those manifolds are pretty tall compared to stock. Make sure you have room under the hood for the one you choose.

Jul 23, 2006 | 04:21 PM

smallblock351w

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i may be wrong but on something light like a mustang and on a 289 that is pretty commonly a high reving engine i dont see why the big concern with off idle. i understand that on heavy trucks though