Hello welcome to the forums. you can and alot of us do just use our 130 whels in 126 frames but it takes a bit of fiddling to get them in and out. a believe a 8spd campy should be a 130 space hub
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“One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk