Kit car Hayd

Hi has anyone fitted a 1.6 pinto with Webber 45s successfully? running standard carb at the moment but have been offered some 45s that were on an RS2000 about 30 years ago but there are in great condition? I’ve never worked on a car engines much before. More four and 2 stroke bikes so not that well informed on the subject. what sort of power would you expect if 45s were installed?