Car is kick a$$ !!^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
For those that say you cant put a bigger rad. in it , I`ve got a 28x19 crossflow in mine , and "haven`t cut the cradle out for the tanks either" , the orig. core opening is the same width as my core. Using a 17" , 6 blade, 2'' pitch fan , with a 2954 clutch set up . My temps are about like yours , hasn`t gone over 212 w/ this set up , Of course mine is more likely built a little hotter and creates more heat , and the 68 barracuda has a small engine bay , especially with raised port heads.
I may go to an 18" fan if a problem pops up next summer , I do have room to trim my custom made shroud a little for it . I pretty much agree w/ what 72bluanndblu and RRR said , I do have a 14'' elec. fan that is set to come on at 200* in front of the rad. too , its comforting to see/hear it kick on at a stop light in the summer , but might be actually blocking a little air flow on the hi way, but hasn`t been a problem--------.
I have a 1 to 1 pulley ratio , and haven`t found a bigger water pump pulley to speed it up ,and not sure if theres enough room to run a bigger on w/o hitting the crank pulley anyway