I tried the header wrap, and it was a waste of $. It did not cut down on the heat. The compensating port in the MC is not blocked, since I can see the alum. piston move past the port when I push on the brake pedal. Since I can't locate the problem, I am going to Plan B a few months early, i.e. the installation of an open drive rear and a 4 speed, 3.11 1st gear, Saginaw with a Patrick's shifter.