Factory AC Removal Questions

4spdragtop said

As PF said that's factory. Why are u removing it? AC heaterbox and NON AC heaterbox are different. The factory ac in our 67 cuda isn't hooked up, but I left the underdash diffuser in as well as the orig heaterbox.

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This is a parts car he bought for parts for his 68 GTS. I need to remove the cluster, wiring, switches, and dash pads and I just assumed (maybe incorrectly?) that all that would be easier with that vent out of the way, especially since I don’t think he will be using the AC setup in the other car.