judgeholden
New Member
First time post here, so hello. I recently purchased a 1967 Chrysler 300 with a 440. It's amazing but needs a lot of TLC. I tore apart the Carter AFB (it's stamped "66 4326S"). Hard to tell if it is the original, though the manual says that this is the correct carb for a manual (mine is an automatic). Regardless, it was a hot mess, full of junk and rust, and desperately needed a rebuild. Unfortunately, I could not remove the jets without damaging them. After doing so, I noticed that the primary jets were NOT the same type that are easily purchasable for AFBs. They are taller, so the more common style (which is used in the secondary) will sit further down. The jets, per the manual, are .098 and .077. Anyway, I guess I have a few questions.
1. Can i simply use the shorter style without greatly affecting performance? Logic would say that it "step up" earlier than normally, possibly causing it to run excessively rich. Would a softer spring compensate for this?
2. If I cannot, how can I use the newer style? Some research leads me to believe I will need new (shorter) step up rods (and maybe springs) along with the flat style step up rod covers (mine are the "dimpled") along with the new jets.
3. Would it make the most sense to just change it all out regardless? Any advice on rods/jets/springs for added performance and/or to compensate for the changing quality of modern gas?
Thanks in advance for any feedback
1. Can i simply use the shorter style without greatly affecting performance? Logic would say that it "step up" earlier than normally, possibly causing it to run excessively rich. Would a softer spring compensate for this?
2. If I cannot, how can I use the newer style? Some research leads me to believe I will need new (shorter) step up rods (and maybe springs) along with the flat style step up rod covers (mine are the "dimpled") along with the new jets.
3. Would it make the most sense to just change it all out regardless? Any advice on rods/jets/springs for added performance and/or to compensate for the changing quality of modern gas?
Thanks in advance for any feedback