Ok guys I am getting a lot of mixed opinions about what to do with my AC. I am in the middle of a project restomod for 1968 firebird. I live near Sacramento so it gets pretty warm in the summers. It was an original AC car but I am finding that I only have limited original parts. I probably have about half of what I need for the original parts. It looks like it going to be a real Easter egg hunt online to find everything I need to go back to original system. I see vintage air sells a GenIV kit for about $1,500 that has everything I need. I have heard that the vintage air systems are crappy and barely put out cool air while others say they are great. Not sure what to do???