I don't doubt it's a Pinarello. But would probably be lower, like an Italia, Asolo, Treviso or something. Looks like this 1991 bike (below) had the same shaped headbadge sticker, bb shell, Pinarello dropouts. But OP's is not this model. However, this shows that - at least by 1991 - this style of shell was being used.

https://steel-vintage.com/pinarello-...ke-1991-detail