73 dodge dart TTI headers

I would think that it would be no different for your car than other Darts. The factory tolerances create issues as do other aftermarket parts such as scattershields,oil pans,suspension changes,ets. I think you'll need the mini starter with those headers? Get good gaskets and bolts,dont cheap out on the little stuff. New engine mounts will help make sure the engine is where it is supposed to be.

There was a recent thread by a member who is a mechanic and put in his own TTI system with an X pipe. His Dart has a 4 speed with an aftermarket scattershield. Maybe he'll post here and help you out. I think it was a tough project even for him.