Got the new rad, flow kooler and up pipes inatalled and sealed up. No leaks, worked good on a little test dragging my 4k trailer to the nearest city. About 70* ambient so nothing special, but up a good grade at WOT or nearly WOT for 4 mins saw the coolant hit 223*, but the temp wasn't running away like it would before.
That was 75mph, 1050-1150* on the pyro and 12-13 psi 5th gear with these big tires and 3.55 final drive. I'm pretty happy with that!
I'll be heading back home soon, which is a little more strenuous. Yay for testing!