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#1
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Carb Question
Hey there guys, the saga with my 230 continues... I found out yesterday that the carb that came with this engine is a service replacement unit (which is not the bad part). The carb is a Carter 6132S Quadrajet. After running the number on the carb through some old databases I found out that it's a replacement unit for a Pontiac 400/428 and the metering rods are stamped with a 39. From what I've seen the 39 rods are some of the smallest ones out there making it one of the richest running Quads made. My question is do any of you have the specs on what the metering rods are supposed to be for the OHC 230's? As always, thanks for any and all answers.
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#2
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This won't answer your question, but I have recently done business with https://quadrajetparts.com/ and was very pleased with my experience. I needed an assortment of jets and a metering rod for an early 50s Carter YF one barrel on my '52 truck. Had them all and arrived quickly.
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My Pontiac is a '57 GMC with its original 347" Pontiac V8 and dual-range Hydra-Matic. |
#3
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Here is what I have as original for 67. Your experience may vary as today’s gasoline is much different. This will get you close:
1967 manual trans/ .071 jet / .046 primary rod / AJ secondary rod 1967 auto trans / .071 jet / .047 primary rod / AJ secondary rod I do not info on the correct hangers. Rob |
#4
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Just got off the phone with a guy in Washington that knew his stuff. The jets are supposed to be 71's and the rods are supposed to be 42's. And, just for the fun of it, I found this in an old parts catalog. Looks like he is right!
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#5
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Small rod doesn't necessarily mean more fuel if jets and air bleeds are sized accordingly.
One book here shows the 6132s as a replacement for 326/400/428 in 67. Stoich 14.7 doesn't really change for cubic inches. The carburetor does what it does. The 230 "might" need a little softer power valve spring than a bigger cube engine for a leaner transition. Not positive but thinking Carter did do rods/jets/airbleeds differently than Rochester on some carburetors. Different parts with the same end result. IDK Clay |
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