[Pontiaco]

Hello guys trying to find out if the northwind intake manifold will fit underneath a stock ram air hood on a '68 firebird with a 455 motor and kaufman high port heads.

I don't have a hood yet so i'm open to suggestions, thanks!!!

[punkin]

I've been told it will fit. I have one on the way for my 68. I'm going with an XFlow FI setup. I'm really hoping it fits.

[Dragncar]

Originally Posted by Pontiaco

Hello guys trying to find out if the northwind intake manifold will fit underneath a stock ram air hood on a '68 firebird with a 455 motor and kaufman high port heads.

I don't have a hood yet so i'm open to suggestions, thanks!!!

The High Ports will put you a bit higher than stock. E heads and NW would have gotten you in the right spot.
Not saying you can't make it work though. Folks have ran High Ports with Victors and first gen hoods and they had to mill the Victor a bunch which compromised performance.
The new E heads with LS chambers and a Northwind are the hot ticket for 1st gens and stock hoods.
High Ports are still a raised port head any way you look at it. You can see the spacer built into them. IMO running them with scrawny air cleaners or cut down intakes defeats the purpose of a raised port head.

[Scott Stoneburg]

Are you running a 4150 carb or 4500? That could make a difference as the 4500 is taller. A friend had E-heads and a victor topped with a Dominator under a flat hood. He had to trim the carb bowl vents and remove th hood reinforcement over the carb. The NW intake is shorter, but high ports raise it up. So it will be close.

[Pontiaco]

Originally Posted by Scott Stoneburg

Are you running a 4150 carb or 4500? That could make a difference as the 4500 is taller. A friend had E-heads and a victor topped with a Dominator under a flat hood. He had to trim the carb bowl vents and remove th hood reinforcement over the carb. The NW intake is shorter, but high ports raise it up. So it will be close.

I'm running a 4150

[Scott Stoneburg]

That will give you a little more room.

[Gary H]

I have installed a Northwind and a 4150 style Holley on two different early Firebirds, for customers. One was a 67' and the other a 69'. With a drop base air cleaner you've got room for a standard size air filter.

[Pontiaco]

What you call standard size I'm looking to use a 14x3 air filter

[JLMounce]

From Tin Indian's site the measurement from the valley pan to the carb flange on the northwind is 9.622" Add half an inch to that for use on high ports.

To give you an idea, I currently have a torker II with a fitech on top and a 14x3" non-drop base filter that "just" fits under my stock 1969 Firebird hood (non 400). When I say just fits, I do mean just, the top of the filter lid contacts the underside of the hood enough to cause scraping, but not enough to cause deformation of the hood.

By my calculations, the addition of high port heads and the northwind intake would add 1.725" to the overall height where the fitech is 3.25" (I believe same as a holley 4150) from base to filter flange. So a 2" drop base air filter should theoretically allow for room under the hood of a stock first gen bird. Ultimately it's going to be close enough that major changes in how the engine is sitting in the cradle could make a difference here, you should definitely measure.

FWIW I actually talked with Jeff today about this specific scenario and he claims it'll fit.

[Chupa]

Originally Posted by Pontiaco

Hello guys trying to find out if the northwind intake manifold will fit underneath a stock ram air hood on a '68 firebird with a 455 motor and kaufman high port heads.



I don't have a hood yet so i'm open to suggestions, thanks!!!

I run a north wind with a 4500 in a first gen - I do have a glass 400 hood though... run it with a large drop base air cleaner... everything fits and runs good


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