Slant 6 Turbo 68Dart Project

Well I have finally gotten an upper hand on the overheating issue. I have gotten it to heat up slower, and I call that a minor victory. I can drive it around for a while before I have to shut down. I have drained the coolant several times in the last couple weeks. I've changed fans and I've retorqued the head bolts (that helped get the exhaust out of the coolant) and I've even block checked it. The fluid no longer turns yellow. Now what I can see is that the radiator has little balls of rust in it I believe were inside the block and got flushed out into the rad over the last year and a half or so. None of this is turbo related fortunately.

I believe what started this is the warping of the head due to head bolt stretch, and then me "bench racing" by changing all the components I could think of to try and fix it. I'm almost back to how I had it in a 100% functioning state, but I believe the coolant/water isn't flowing well and still want to find someone to do a reverse flush on the whole deal. Then it's back to turbo tuning. I want to make 14psi here eventually.