QA1 Handling kit questions ???

I'm considering a QA1 handling kit install for my 68 340 Barracuda. My question is am I going to face any fitment issues??? I'm also looking at a set of TTI headers during the install. My car is a manual brake and manual steering with auto on the column. Just want to know if I'm going to run into problems BEFORE I spend a bunch of money. Or is there a better option???