standard setup in the early 70s I remember was a 52-42T front, and a 13-17 5 speed 'straight block' if you were racing entirely on the flats, and a 13-24 or so if you had serious hills. some racers ran 53T fronts for a little more top end. regina deloro freewheels on campy nuevo record hubs, with sedis chains, yeah, bebé!