What is Montag's plan for the extra copies of the books on page 82-83?

When Montag meets with Faber and earns his trust, they begin to collaborate on a plan to upend the elements of society that have led them to that point. Faber is the more practical and cynical of the two, and tends to vacillate between his deep love of culture, knowledge and learning, and his convictions that society is, at this point, too far gone, and will require years, if not generations, to restore itself to a point where it might begin to even consider restoring itself to its former state. Montag is more interested in taking immediate action. 
Montag suggests printing up extra copies of books, though not necessarily with any intended purpose in the first place; this is simply to keep entire works from being destroyed through attrition. Faber makes a half-hearted joke about planting some of the books in the homes of firemen. Montag either already had this in mind, or latches onto the idea immediately. He has a list of the homes of firemen, and could plant the books himself. Once the scope and scale of the scandal is publicly revealed, the entire fire system would appear to be corrupt, either casting doubt upon its integrity, or upon the integrity of the ideology that drives it.