Does it run the same as before you took it swimming? If so, you're probably fine. Although I've never had mine in that deep, I believe that as long as you don't get water into your air cleaner there's no harm (that's how those guys with a snorkle can go so deep).
Terry
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'85 CJ-7 - 33s, total of 4.5" lift,
TFI ignition, plus more.
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