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Old Dec 19, 2006 | 11:10 PM
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Default No Date Stamps

Why do some Qjets have the application number that works for my car but no date stamp along side of the application stamp.

Are these permissible when a car is being judged by NCRS?
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Old Dec 20, 2006 | 04:01 AM
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Originally Posted by SoCalErv
Why do some Qjets have the application number that works for my car but no date stamp along side of the application stamp.

My guess is they have been rebuilt or its a replacement part with correct number but no date code.


Are these permissible when a car is being judged by NCRS?
Sure...all is permissible. If the judging guideline spells out a date code and one is not present, than only the absence of the date code is judged...not the entire component. For example using a carb from 1978, it scores originality 34 points and condition 26 points with 5 points assigned to the carb date.

Your carb's deduction would be five points and you score 29 for originality. Replace the Qjet with a Holley...and your deduction is the full 34 points. We are assuming condition is fine and no deductions are made.

Does that help?
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Old Dec 20, 2006 | 09:05 AM
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Originally Posted by hunt4cleanair
My guess is they have been rebuilt or its a replacement part with correct number but no date code.

Sure...all is permissible. If the judging guideline spells out a date code and one is not present, than only the absence of the date code is judged...not the entire component. For example using a carb from 1978, it scores originality 34 points and condition 26 points with 5 points assigned to the carb date.

Your carb's deduction would be five points and you score 29 for originality. Replace the Qjet with a Holley...and your deduction is the full 34 points. We are assuming condition is fine and no deductions are made.

Does that help?
It opens the door and lets the light in.

Thanks
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Old Dec 20, 2006 | 09:09 AM
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What year are we dealing with? 68's and early 9's had the date on the base plate rear drivers side instead of the body by the model#.....................B
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Old Dec 21, 2006 | 04:29 AM
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Originally Posted by corvetteload
What year are we dealing with? 68's and early 9's had the date on the base plate rear drivers side instead of the body by the model#.....................B
Principle is the same...if the date code is listed as one item to be judged.
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Old Dec 21, 2006 | 01:07 PM
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Originally Posted by hunt4cleanair
Principle is the same...if the date code is listed as one item to be judged.
I understanding the judging aspect. But why do some carburetors not have a date?
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Old Dec 23, 2006 | 10:59 PM
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Originally Posted by SoCalErv
I understanding the judging aspect. But why do some carburetors not have a date?

I think the one comment was that the '68 and '69 carbs have the date on the base, so there is no date next to the model number.

Some of these are a bit rough in the throttle plate area and so they can be hard to see, while others are clear. But add some dirt, leakage, and a few years, and you may not see it.

Can you put up a picture of the carb in question? Is it an ebay item? Do you know the year or can you put up the model number?

Some 1969 carbs have a date on the main body, like this.


And some don't, like this one.


Some also use the full number, like 7029203 where others use 29203 without the 70 at the beginning.

It could be with whether it is a Carter built or Rochester built, but I don't know.

If you look at this one, the red spot on the base is about where the date should be. As you can see, it is a bit rough and doesn't appear well, so it is possible to have a date there and simply not see it.



-----------
Hey, it is Post 427. Not relevant to the thread, just a thing I have for numbers.
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Old Dec 24, 2006 | 08:24 AM
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The closest explanation your going to get, as said before, is they're made by different companies. And this is really not written in stone. You can ask NCRS,(think you did), here, or anywhere else, and not get a definative answer. Just the way it goes.

If you are trying to justify a dateless carb for your 69 as an original, your guess is as good as anyone elses. Trust me, you can go crazy trying to make sense of some of these things.

For me ,I would look for one with a date, and take the guesswork out. As I've said, that 7029207 has date codes well into the 90's. Here's a late 68 version.Around Oct 12, well within the acceptable 6 month window for 69. Or is it 78,88,or 98? See what I mean


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