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You can shrink the hole with a ball bearing (Old style sheet metal trick) silver solder it closed and redrill if you can tolerate some inprecision from flow eddies. The many times I took a jet from #30 to 25 I didn't notice any flow issues, but my mechanic friend had a brain hemorrhage.
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casual notes from the underground:There are some "experts" out there that in reality don't have a clue as to what they are doing.
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