^ Thanks for the advice Boy from OZ,so you just welded everything I outlined except front radiatior supports and the frame rails .In your first picture I dont recognize where this is on the Z it looks like the frame rails but im not sure .
The reason why im doing this is beause I was told by a Z guy I met that the RB26 swap im doing would absolutly need some reinforcements to prevent twisting of the front end ... I am a little doubtfull since V8 guys dont seem to be doing seam welding but I told myself what the heck it doesnt hurt to make it more rigid .Since the car will be street driven 90% of its time ,their is no race track within 300km for my place, their is no need to go overkill either.
And Tony D can you show me a picture or just a simple drawing of what you are talking about the C channel from floor to firewall .