Faliscan is a language or dialect of Latin. All its written sources come from area known as Ager Faliscus, in today´s Lazio region (Bakkum 2009:pp. 9). Its corpus includes inscriptions and glosses. The number of inscriptions differs by authors, from 100 to 600, or 355 suggested by Bakkum (2009:10). Most inscriptions are funeral, containing names of the deceased, names of the tomb owners or burial rights. There are also pottery inscriptions with names of the potter and few dedicatory or official inscriptions. They span from the late seventh to the middle of the second century BC. The texts were written usually from right to left, in Faliscan alphabet, which was derived from a  West Greek alphabet.

Unfortunately, the size and composition of the corpus does not allow any examples of adjective valence.

Bibliography:

Bakkum, Gabriël Cornelis Leonides Maria. 2009. The Latin Dialect of the Ager Faliscus: 150 Years of Scholarship. Amsterdam: Universiteit van Amsterdam, 742pp. (Doctoral dissertation).

Conway, R. S. 1897. The Italic Dialects. Cambridge: Cambridge University Press, 491pp.