Does the radiator fan run whenever the AC is on for the '87 AC design, or
does it cycle by temperature or compressor demand?  How hot does it have to
get before the second stage (high speed) kicks in?  I think the fan runs
all the time on my '85 when the AC is on.  Are the '87s different?  Do I
only have one fan speed or two ('85 w/AC)?

                                                             Jay