Author Topic: Port letters on Q-Jet housing  (Read 2382 times)

Offline johngaltx

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Port letters on Q-Jet housing
« on: May 17, 2010, 02:29:56 PM »
I would like to know, or see a diagram, or a set of photos describing the letters that go with the various ports on my 1976 Q-Jet. These letters are cast into the body of my Q-Jet, and they where probably not put there by accident. I had an Edelborck Q-Jet replacement on the car (#1903) and I also had a corresponding sheet from Edelbrock describing the various ports, locations and functions.

I am attempting to right the many wrongs that have accumulated over the years on my 1976 Trans Am-400 cid-400TH. I currently have a correct Q-Jet and am trying to get the motor set up as it was when it was stock.

Any help would be greatly appreciated.

Offline Schurkey

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Re: Port letters on Q-Jet housing
« Reply #1 on: May 18, 2010, 07:48:40 PM »
Any help would be greatly appreciated.
All you need is a factory service manual.  The vacuum hose routing and carb nipple ID letters should be in there.

Failing that...if you have an underhood decal, the routing is probably printed there, too.
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Offline johngaltx

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Re: Port letters on Q-Jet housing
« Reply #2 on: May 19, 2010, 01:20:53 PM »
I have all the manuals, and the under-hood sticker----what I am looking for is the names of the port assignments that correspond to the letters that are cast into the main body