The combat did took place on March 11, 1944 and the unit was 325th FG. The Italian unit involved was 1° Gruppo Caccia ANR and what follows is the original mission report:
I know it is all in Italian, but I have a fever of 39° and a bad flu, so I hope you will forgive me if I do not post a translation...
However, the main data is that the Italian unit claimed eight P-47 shot down, one probable and four damaged, in addition to one four-engined bomber claimed shot down, one probable and twelve damaged.
It is more than evident that such claims were mostly unfounded, but this is not the first nor the last case of such an occurrence, as I have discovered through years of researches.
The only true and verifiable data are the four Macchi C.205s lost (three shot down and one crash-landed) and the three pilots KIA.
Hope this is of help.