General Category > Quadrajet Carb Talk and Tips

17057231 or 17059232 on a 472

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Cadman-iac:

--- Quote from: novadude on January 08, 2026, 10:59:28 AM ---Well, as usual, Kenth is correct.  My memory was wrong on the year of my parts carb.  I finally got around to looking at it, and it is a 7041xxx, not 7029xxx as I had remembered.  It does have this system as described by Kenth above:

Thanks for setting me straight!!

--- End quote ---

 So your's is a 1971 unit then? You wouldn't be willing to post a few pictures of the air horn and where the POE system comes out for both primary and secondary sides would you?
 Mine is a 1972, so only has the primary side POE.
 I'd really like to see how your's is designed if you get a chance. Thanks for checking too, I appreciate it.

 And thank you Kenth for your excellent description of these.

Rick

novadude:
I will try and dig it out this weekend and grab some pictures of the airhorn

novadude:
Here you go.  This is a 7041230.  You can see the POE below the Choke on the primary side, and the bleed holes that Kenth referenced on the secondary side.  The tubes from the airhorn extend directly into the float bowl.

Cadman-iac:

--- Quote from: novadude on January 10, 2026, 03:13:19 PM ---Here you go.  This is a 7041230.  You can see the POE below the Choke on the primary side, and the bleed holes that Kenth referenced on the secondary side.  The tubes from the airhorn extend directly into the float bowl.

--- End quote ---

 Wow, very interesting! They hadn't finalized the design of the top of the air horn for the POE system, it's almost like an afterthought the way it protrudes from the surface. I wonder how effective it was?

 The later system doesn't have any bleeds for the POE system that I'm aware of, just the tubes that used a restriction on one end or the other depending on the year that I've noticed.
 I have either 3 or 4 sets of the tubes from various carbs, one set is just like the secondary accelerator system, open from top to bottom with no restrictions at all. I'm guessing that the restrictions were actually the discharge ports themselves, and if memory serves, these were from this '72 carb I've got.
 Then another set was installed with the restriction located at the top inside the air horn, and another set was installed with the restriction at the bottom so it was submerged in the fuel bowl. I don't know if one or the other is correct, or if both are. How can you tell? Is there any information available on these somewhere?
  Thank you for taking the time to get pictures of that Novadude, I definitely appreciate it. So cool to see how things were developed over the years.

 Rick

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