I'm working on a 1968 Bullitt Clone that has a Granada front disk swap. We also converted the car to a 4 speed and power disk brakes. I am fabricating the brake lines and ran into a problem. The clearance with the big block, 4 speed and power disks is so tight that we will not be able to reach the proportioning valve which I plan to mount on the inside fender apron right under the stock distribution block. I thought about mounting the proportioning valve in the wheel well and running the lines through the fender apron, but it will be exposed to road dirt and don't know if that's such a good idea. Anyone ideas? Thanks!