Thanks for the nice comments, actually the a/c my Dad added when he redid the car in the early eighties, originally Y2 black bench auto, PS and am radio a rather bland car. He added every option he could find for it,myself and him scavenged junkyards almost every Saturday and swap meets on many Sundays looking for plymouth stuff and late fifties early sixties chevy stuff. the air unit is actually a 1970 but i found those lines are nicer because the compressor can be swung out of the way and set on the fender. His theory was if you are going to rebuilt it redo it the way you would have liked to option it new although at the time he was also a numbers chasing corvette guy too. He did well with it for add ons and you would be hard pressed to know it was added. Air conditioning, cruise control, tach, light package, dual mirrors, am/fm, buckets, console, 3.23 sure grip, tinted glass, woodgrain steering wheel. never did find power windows bits and pieces but not enough to do it. The air still works and the cars drives along great and is so easy to drive my Wife has taken a new found interest in it and wants to drive it around some once it's finished ,my Dad is happy to see the car being fixed up again, I just need a little peer pressure to get motivated to go out in the garage this time of year.