Dave,
I have a question for you on the Challenger. I am in the final stages of attaching my A/C lines and i am looking at the picture of the firewall where the evaoprator box connectors are located. I have a plated bracket that attaches to the larger hex-end (compressor line in, i think) and bolts/screws to the firewall above the seam. I noticed that you don't have that. Did that car not come with one, was it a super early build car (min is 12/69). i just need to find out if the screw holding it down is a phillips head, or hex head. thanks!!
Matt