The heater control valve was missing when I got my 72 Dart Swinger with a 318 a/c. It has the vacuum reservoir and the two hoses coming out of the fire wall. Is the valve normally open or normal closed. I haven't got the engine back in yet, so i cant just test to see when the vacuum is there. Anybody know? Also I'm looking here to order one, unless someone has another suggestion. http://bouchillonperformance.com/BPEheaterValve.asp
Craig
Craig