TTI 2.5" Exhaust system install....many problems

I am putting TTI head pipes on my 73 Duster now. Running HP340 manifolds. Running a 4 speed that we just swapped in tonight. Drivers side fit gorgeous. Passenger side... I have no idea how it’s going to even fit between the factory bell and torsion/oil filter. I have an aluminum factory adapter. I just have no idea how it can even work. Are there different 90 degree adapters that work better? Very disappointed so far. Do you have to install the head pipe first then torsion bar? I didn’t receive any instructions in my box. Thanks.