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Mod | | | Forums66 Topics128,049 Posts1,055,553 Members48,425 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Sep 2004 Posts: 241 'Bolter | | 'Bolter Joined: Sep 2004 Posts: 241 | I recently acquired a Carter YF 966S carburetor. The metering rod jet is marked 120-162. One of Carb King’s old postings stated that the last 2 digits of this number is the orifice size of the jet in thousandths on the YFs. So then it would be a 0.062 orifice. The low speed jet assembly has 11-325 stamped on the head (At least I think it does, it is hard to read). I’m not sure if this is a part number or this number can also be used to determine the size of the jet.
I’m not familiar with the correct size of the YF jets for a Chevy 235. I live on the coast in So. California. I’m just wondering if these jets would be either too lean or too rich. I’m not that well acquainted with the Carter YF.
Thanks.
Mark
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