spark and no spark

This is what I got.

12.25volts at battery, 10.57 while cranking.
12.20volts at coil, 8.37 while cranking.
12.02volts at starter relay, 8.37 while cranking.

Checked impedance of battery ground wire to frame, .000
Checked impedance of engine to k frame, .002
checked k frame to frame, .000