I got the Mav home yesterday but I found that by all appearances, the heater control valve is stuck closed, no heat. The vacuum hose isn't the problem. It looks like the original one so I'm not surprised. Are there any non specific ones that anyone's used that would replace it using the original diameter 5/8" hose? I'm sure this has been asked and answered before.
Is your control valve like this one? https://www.autokrafters.com/p-9469...pinto-1978-92-bronco-1972-76-thunderbird.aspx