Clutch Linkage

I put in a McLeod clutch on my Dart. I haven't run it yet. Car is still being built.

Been reading a lot about beefing up the z-bar and the firewall because of the stronger than stock pressure plate. Question I have, what needs to be done? Does anyone have any pics of what modifications are needed? I'd like to address these before I put the linkage in. I'll be putting a set of TTI headers on this car as well, and I don't want to make any modifications to the z-bar that will interfere with it.

Appreciate any advice anyone can give. I like to do it right the first time, and anything anyone can recommend is very welcome.
I put a 426 Hemi 4spd Dana 60 in a 69 Barracuda Fastback. I used the McLeod clutch. Never had any issues with installation or useage over the years. Engine has been in the car for40 years now. I tried running headers when I installed the engine but the headers would touch the ground on any small dips.And yes I have the heavy torsion bars as well, So I removed them and went with manifolds