Extremely Dissapointed in my TTI exhaust and headers maybe someone can help with my fitment issues and provide some guidance

I would first verify that what you have is the correct set for your application, then contact TTi before I cut anything up or got out the BFH. I have installed 2 sets of TTi headers, one on a 1970 Dart, one one a 1975 Dart Sport, both 360/727 cars. I also put the full 3 inch exhaust system on the 1970, in my garage with no hoist, only jackstands, in one Saturday afternoon, by myself, absolutely no problem with any of these.