Not Ranked
I stripped mine and found one of the jets wasn't the same as the others plus a few bits were missing. Nothing Weber is cheap but they are very simple carbs so easy to work on.
I purchased a copy of the Weber Tuning Manual (can't remember where from) which is very simple to follow.
My 289 engine is in set-up so no idea whether they need another idle jet drilling or if I can live with the hesitation at 2,500rpn....time will tell
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