TTI Exhaust install 1964 v-8 Barracuda

Just finished install of a TTI 2.5 exhaust kit for stock manifolds of 273 engine on 340 engine in a one owner 64 barracuda that my sister-in-law owns. Well at the start I took the barracuda to a muffler shop to install a dual exhaust before I did the 340 engine swap. They could not do very much only single exhaust starting at where the pipes come together, which was not what I had in mine. So I checked the manifold numbers that I had to work with which was the 340 HiPo manifolds or 273 stock manifolds. Wanted to use the HiPo manifolds at 2.25 manifold size, but TTI could not use those manifolds in the 64 body style. I ordered the 2.5 exhaust X-Pipe kit complete with mufflers. The kit came in good time in one box, very well packed with plenty of padding. Thought it would take about 1 week to install including cutting the crossmember. Instead took about 2 weeks of test fitting and installing the muffler mounts. The instructions say to start from the back and work foward which I did, However I would start at the muffler mounts then see where the tailpipe hanger would like to be mounted to clear the axles the best. The mounts were very high quality, I did modify the muffler hanger with extra adjustment holes to mount as high as I could.