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BlesUp
@Ndeipi
It's hard to say, but I'd be reasonably confident that 110 will still be ok. But who knows how broad the Italian frame chainstays will be?
Sheldon's BB size page doesn't discriminate for BSA/ITA.
I'd say keep the old 110mm BB, put the cranks on it. Then hold this assembly up underneath the new frame's BB shell and peer at the chainstays from the top. Try to judge clearance.
Also, possibly more importantly, how's your chainline with the current set up? Measure it and work out whether you need to send the cranks outboard or not. (Assuming you're not changing rear wheel).