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Carb help

Discussion in 'XJ Modifications' started by Matt51243, Oct 27, 2026.

  1. Matt51243

    Matt51243 New Member

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    Hey y’all. I’ve got a 1981 XJ550. I ended up putting pods and a 4-1 exhaust on it. I was reading a post on here and it says I need to go up in jet sizes for certain modifications. Idle/pilot seem to run fine. Once I start getting into higher rpm it’s like it hit a limiter. I tried opening choke and it was worse, so I'm running way too rich, but I’m on stock jets? So I would need to go down In jet sizes even though I added pods and 4-1? Any advice?
     
    Matt51243, Oct 27, 2026
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