Forced Induction Superchargers | Turbochargers | Intercoolers

Which Tall Intake Manifold should I go with for Boost?

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Old Apr 6, 2013 | 05:10 PM
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Default Which Tall Intake Manifold should I go with for Boost?

I have a LQ4 that I am putting in my 67' Chevelle with a T6 S88 Turbo.

I am about to order a Edlelbrock Pro Flow XT but I thought I should ask if there are any other options to consider that might be better.

My Throttlebody is a Fast 90mm and I have a 4" cowl hood so I can fit a tall Intake.
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Old Apr 6, 2013 | 05:29 PM
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Holley Hi-Ram

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Old Apr 6, 2013 | 06:00 PM
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Xt fits under the stock hood if you care about that.
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Old Apr 6, 2013 | 08:09 PM
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I have a 4" cowl.
I will look at the Holley. I want a manifold that won't leak. So I want the tb flange to have the o ring boss not the LS1 style flat flange.
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Old Apr 6, 2013 | 09:43 PM
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Holley Hi Ram any day. They are great intakes for boost.
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Old Apr 8, 2013 | 10:04 AM
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I have the Holley Hi Ram, but I can tell you mine just had the flat gasket surface for the TB. That being said, it would be easy to machine a groove for an o ring on the TB mating surface.
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Old Apr 8, 2013 | 10:07 AM
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I'm just using the paper gasket that comes with the intake, but I've seen a friend put a groove in the TBs to use an o-ring.
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Old Apr 8, 2013 | 11:15 AM
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I saw my buddies leak meth on the dyno under boost right at that flat TB flange. That's why I want the o ring groove.
BTW the Edelbrock Pro flo XT has the flat flange on their 7139 part # but their 7140 has the oring groove.
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