Moving distribution block?

Just installed 1 7/8" TTI headers on my 73 Dart Sport and now have to relocate the brake line distribution block. The #7 primary tube comes to within about 1/2" to the block which is mounted on the inside of the frame. I had to remove it to install the slip on pipe. I called TTI and they told me that does happen with some of the A body applications. Anybody else experience this? Where did you relocate the block to?