Started modifying the factory A/C lines. This meant trimming the lines about 6″ from the bulkhead that bolts to the compressor. They were both trimmed at straight sections as to make tying into the GM lines a bit easier. I am still searching for a set of GM R4 A/C compressor brackets, specifically ones that mount the compressor on the upper drivers side. I have located a set on eBay, but I am not paying $65 for some used brackets. I may have to run down to the local junk yard and see if I can find a truck to rob a set off of, along with the A/C line.
These are the brackets in question. If anyone has a set they would be willing to part with, you can contact me here.