brass & stainless ball shut off valve, like the old MG's & Jags used to shut coolant off to the heater core allowing the A/C to work in a beautiful manner.
I'm happy now, 48 degree A/C at the center vent, 64 degrees in the foot wells down from over 100 degrees. If it gets cold enough to use the heat, simply opening the valve supplies the necessary BTU's.
That's correct, I RIGGED IT, I'm happy


