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???

I have TTI headers on a small block with stock K-Member and they fit perfectly. I personally don't see much value in using the QA1 K-member for your application. Small block in an A-body is common practice. Everyone will have their own opinion on this topic. I welded my K-member, used adjustable strut rods, tube type tie rod adjusters, tubular uppers, boxed in the lowers, and used 1.08 sway away t-bars. the difference from stock was amazing. I'm still using cheap KYB shocks and I don't have a sway bar as both are on backorder from Hotchkis for another 2 months.
To answer your question about drag racing, if you plan to street drive and drag race, the adjustable shocks may be best for you. That way you can loosen the extension and slow down the compression on the front shocks when you race.