is there a way to find italian births free online
Look at the Europe board which is under heading "Research in other countries" on the Forum. It has a list of resources. If you don't see anything on the list you could ask for suggestions.
If you put a new request about John Valente on that board, say in your first post that you already have this topic on the Lancashire board.
You have the benefit of knowing names of both his parents from the Ancoats church marriage register for the Catholic wedding ceremony on 1921.