Please be sure to look at Poland Project Library which has plenty of rabbit holes for you to explore. There is a great group of researchers who have been uploading records in the Podkarpackie Voivodeship via different methods.
According to GersherGalicia: Wampierzów records can be found here (it did not have it's own parish, and because it didn't have it's own parish, you need to check surrounding villages against GesherGalicia Town locator database to find all the nearby parishes.
Wampierzow; (Admin. District: Mielec); (Judicial District: Radomysl); (Roman Catholic records: Wadowice); (Jewish records: Górne Radomysl)
Wadowice is where you need to look first for any records.