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How do i chose an intake manifold?

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Old 08-16-2006, 05:01 PM
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Default How do i chose an intake manifold?

Do i go 78mm or 90mm?? I have a 2000 trans am, with intake, full exhaust, F13 cam and valvetrain. I want 400whp all motor and may add a 75 shot down the road. is 78 fine or should i go 90? How much does 78 flow compared to 90...

On my old 5.0 mustang i went 90 and it was over kill for my parts...
Old 08-17-2006, 07:08 AM
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looks like i found the answer, for me the 78mm looks way to go since i have stock heads.




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