I have the engine mounted up in my LS6 Supra. I now want to setup the brakes. I have removed all brake lines, ABS, proportioning valve etc. I will be putting in an adjustable proportioning valve on the rear circuit. I need to plumb up all of the calipers. I am wondering what you guys feel I should use as far as steel tubing goes. I happen to have 25' of brake tube on a roll, is this acceptable to use or do I need to use the straight sections and bend them how I want? Is there any kind of rule/regulation regarding that in SCCA or any other racing organization?