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Holley 1920 jets
https://slantsix.org/forum/viewtopic.php?t=22352		 Page 1 of 1
Author:  acecafe [ Wed Mar 21, 2007 12:07 pm ]
Post subject:  Holley 1920 jets
before I pull the floatbowl,can I use Holley 4bbl jets ? or are they different? I just got a "remanufactured" 1920 from Kragen which seems like its running lean.
Author:  acecafe [ Wed Mar 21, 2007 12:18 pm ]
Post subject: 
Just read another post.I guess the 1920 uses the same jets as 4bbls.Can I get a float bowl gasket from the parts store without buying the whole rebuild kit? Autozone? Kragen?
Author:  Doctor Dodge [ Wed Mar 21, 2007 8:18 pm ]
Post subject: 
Usually it is much faster and easier to buy the complete kit.
DD
Author:  ricki [ Fri Mar 23, 2007 1:20 pm ]
Post subject: 
Just a warning based on my experiences. 1920's "should" have jets the same size as 4bbl carbs, BUT some of the reconditioned 1920's have jets that are a larger diameter than the 4bbl jets. I dont know what they match up to. I have around 5 1920's in pieces and 2 of the recoed ones have larger diameter jets. I am not running them.
Here is a crappy pic - but it shows a 4bbl ones of the left and the larger one on the right. If you do end up with a larger one, I have 2 of them so let me know and I will check the sizes.
Image
cheers
ricki
Author:  Wizard [ Fri Mar 23, 2007 4:46 pm ]
Post subject:  Third on buying rebuild kits
Easier to buy the rebuild kits but they add up quick even you are only after few parts in that kit. Now I have left over parts of *four* rebuild kits. :p

Just did 3rd time for tuning and replace float (just in case!). I'm finally getting better MPG from horrible holley 5220 carb on 2.2 in my caravan.

Cheers, Wizard
Author:  acecafe [ Sat Mar 24, 2007 1:53 pm ]
Post subject: 
My 1920 "remanufactured" had 53 jets,no wonder it was running lean.I had a 60 from a 4bbl that fit and now it runs sweet.BUT,why is it that I have no vacuum pull from the distributor spout on the side of the carb? The gasket has the hole matched up to the hole in the manifold under the carb.
Author:  dakight [ Sat Mar 24, 2007 4:04 pm ]
Post subject: 
Quote:
My 1920 "remanufactured" had 53 jets,no wonder it was running lean.I had a 60 from a 4bbl that fit and now it runs sweet.BUT,why is it that I have no vacuum pull from the distributor spout on the side of the carb? The gasket has the hole matched up to the hole in the manifold under the carb.
You should see little or no vacuum to the distributor can at idle. When you come off idle you should start to see some vacuum.
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