You have to section out part of the frame for the stock a/c to be used. you can buy an a/c relocation kit from www.hotrodlane.cc and use a Sanden compressor mounted up high on the passenger side head. Long tubes would be 100% custom. I posted a pole earlier about who would buy them if someone made them for us. I modified a set of BBC headers, took about 27 hours of work to get them to fit. www.hotrodlane.cc makes a set of midlength header that will work. Nitrous can tell you which ones to order.