Just wondering what is normal for the three blower speeds on a C2. My car is a 67. "High" is nice and high, with good airflow and loud fan noise. "Medium" seems like low to me, with only a small amount of air movement. Low is basically off, with the fan slowly turning with minimal airflow that I can tell. I think that if I go from off to low, the fan won't actually turn at all. For a heater only car, how "low" is the low position? What is "normal" from a function standpoint?