That's kind of interesting Mikael, I removed my A/C because I don't use it; and it's over a 100lbs but I have to have heat occasionally. The only time I run A/C is in 100+ weather in my truck when I take my dog. I put the A/C on the dog and I still keep the windows down.
The Vintage Air valve has a rheostat and an CU controller:
http://www.summitracing.com/pa...HE14nPSbkWIyjJPD_BwE
I have been using it in the MG for years:
My setup for the heater on the Pantera is different then typical. I am using a P2-T2 couple which I made form stainless and it is in the front of the car before it goes into the radiator:
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