Was A/C ever an option on 340 six Pack cars?

The reason I'm asking is. I have a 1967 Barracuda Fastback that currently has a 360 with a 6 pack cam, and the original owner installed Classic Air A/C. I'm building a 360 / 410 Stroker motor and I'm debating whether its worth it to adapt the A/C to the new engine or pull it out. I've seen one pic of a 70 Challenger on line a small block six pack car with A/C. Not looking for originality, looking for functionality.