After beating your Moltres, look for the following CP values. These values are those of a Moltres with perfect IV's.
Moltres has 251 attack, 184 defense, and 180 stamina. As a Raid Boss, it has a CP of 41953.
Moltres is a Fire-type and a Flying-type. It has access to the following moves:
other viable counters
IMAGE CREDIT: The Pokémon Company