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It seems pretty rare for Chase to give auto CLI, esp. a high amount one.
If your income has seen a sizable increase it might make sense to update that on their site. Sometimes they even send emails "inviting" you to update which might give a better chance.
If you want it and you haven't touched their total chase CL/income ratio (about 50% to 60%) yet, apply for a new card and move CL around is the best way to go.