Your stem looks like it is already flipped (they are often angled and can be flipped over so the angle points up, raising the stem, or points down, lowering it). You might be able to get one with a steeper angle (more rise) that brings the bars up higher.
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Bikes: 1996 Eddy Merckx Titanium EX, 1989/90 Colnago Super(issimo?) Piu(?), 1990 Concorde Aquila(hit by car while riding), others in build queue "when I get the time"