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A vacuum leak would cause a constantly high idle that would never come down.
If all he did was the carb and it idled before he touched it then by simple deduction the problem has to be in the carb. That is assuming he didn't touch anything else. Does that make sense?
Lol, I know how it goes.
Based on our conversation so far simple deduction tells me the problem is still in the carb.
Let me know how you make out. I'll keep my fingers crossed for you.
Hello, just checking in. Any progress?