Stock 360 Upgrades for Crusher Cuda?

It was my understanding that the TTI Headers do not play well with the aftermarket 340/360 conversion mounts, you must run a mini starter, and the torsion bars must be removed and reinstalled thru the headers. I have also heard they are tight to the steering and inner fenders. Specifically for 66' and earlier A-bodies. Please set me straight if someone has other experiences with these headers.
I would think you would be better with Dougs on an early A after all they were installed when the early A was new.