Ignoring the celeste handlebar tape, I'm pretty sure this is a boom era Bianchi. They used that crown and those head lugs with the wide collars. I also believe I can see the serial number impression on the top head lug, which is where Bianchi stamped them during this period. However, from what I can see it's nothing special, possibly a Strada, a Rekord variant at best. Those shifters and front derailleurs are probably OEM and appear to be Camapgnolo Valentino.