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03-04-2015, 10:25 AM | #1 |
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NOS and NORS Jets
Found these in my parts stash last week while sorting things out. I have never seen the jets with the tapered ends before. All are marked 20. Anyone know the source of the tapered jets? Thanks Rod
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03-04-2015, 05:11 PM | #2 |
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Re: NOS and NORS Jets
Article in the Model A Times Winter 2005 pg 35 Zenith jets correct orifice profiles. Might be of some help, Don't have a copy myself.
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03-04-2015, 05:37 PM | #3 |
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Re: NOS and NORS Jets
Don't have one either. All of the other parts in the box are 50's and early 60's vintage NOS Ford parts including some parts for flathead carb parts. Thinking the jet on the left is likely NOS Ford. I wonder how well the jets with the tapered end will run if installed in a carb. Rod
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03-04-2015, 06:42 PM | #4 |
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Re: NOS and NORS Jets
If proper length 1 15/32" and proper jet size should work the left one should have a number 19 or 20 on top for original.Oct 27-jun 28-number 20; July 28-1929-19.5;1930 through 31 back to number 20 also a concave tip not bullet shape which causes low flow leak when vehicle is parked. repos have no numbers.
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03-04-2015, 06:51 PM | #5 |
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Re: NOS and NORS Jets
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