Holley instructions contradicting on fuel bowl level ??

Some shop around town replaced my old junk carb with this one so i'm learning about this stuff now. But the needle looks exactly like this from jegs and same size with the round bullet tip needle. Says this is for alcohol ?? I suspect I don't need alcohol needle ?

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If you are going to replace the needle and seats, a .110 or .120 is plenty big. You don't need that .150 needle and seat.