Some more slow progress. Nothing new except I was able to get the cross over mocked up. Took a little bit of time to cut off the original H pipe tubes, and find the perfect radius tube to go under the transmission, but not lower than the frame rails. Cutting the notches was a blast too, I don't have a tubing notcher but I did find this website:
Tube Coping Calculator, where you can print wrap around templates that worked perfect.
