If the module is "open" or never triggering you will read full battery voltage on the (+) side of the coil whether or NOT there's a primary resistor in place.
What is the voltage between the coil's (-) terminal and ground?
Does it alternate between near zero and battery voltage while cranking?
Is the magnet ring properly installed/all the way down on the cam lobes as far as it's supposed to go?
Is the air gap between the magnet ring and the module correct?
Is the distributor shaft actually turning while the engine cranks?
(P.S. welcome to the "wonderful" world of pertonix!)