I am finishing up my rear end and have installed the Mark VII rear disk setup using the Ultrastang brackets. Can I use the stock 69 Mustang brake lines with an adapter so it will fit the MkVII flex lines? Or do I need to change all the lines from the master cylinder back so I have more volume flow? The Mark VII had larger lines than the 69 did stock. I tried to go on the Ultrastang site and it is gone...domain expired. Thanks!