Found some info that might be of interest to all. First of all Pertronix has 3 models. l, ll and lll. The lll is for V8's and the ll is not mfg'd for our engines, yet. So the model our 70-76, 914 4 cyls use is the #1847V. FYI, they are available in 6 & 12V, - or + grnd. They are located in San Dimas and are happy to answer any questions you have @ 909-547-9058. Anyway, I found some tips which might explain why we are having different results and have posted them below. I have also included a list of compatible dizzy's in case you've changed things around a bit:

What type of coil can I use with the Ignitor™? How do I check my coils resistance? (12V negative ground only)
To determine if your systems coil is compatible with the Ignitor, some measurements should be taken prior to installation of the Ignitor. Caution… While performing this test, never leave the ignition switch on for more than 30 seconds at a time.

Set your voltmeter to a 15 or 20-volt scale. Attach an 18 or 20 AWG jumper wire from the negative coil terminal to an engine ground. Attach positive (red) lead of your voltmeter to the positive side of the coil, and the negative (black) lead to an engine ground. Turn the ignition switch to the run position. Now read the voltage at the positive coil terminal. Turn the ignition switch off. If the voltage measured is approximately 12 volts, no resistance wire is present. A typical resistance wire will provide 9 - 6 volts.

The next step is to determine the resistance in the primary ignition. Label the wires attached to the coil terminals and note their appropriate location. Make sure that the ignition switch is off and disconnect all wires from the coil. Adjust your meter to the lowest ohm scale. If you are using an analog style meter make sure to zero the needle.

Measure from the negative terminal to the positive terminal. Write your measurement down.

Now the maximum system amperage can be determined, divide your voltage measurement by your coil resistance measurement. This will give you the system current or amperage.

Four and six cylinder engines should not exceed 4 amps. Eight cylinder engines should not exceed 8 amps. If the total amperage in your system is higher than the amount recommended for your application, you should install a ballast resistor.

Example
Voltage 12
Resistance 1.5
12 / 1.5 = 8
Total amperage 8

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What will happen if I leave the ignition switch on when the engine is not running?
Leaving the ignition switch on when the engine is not running, can cause permanent damage to the ignition system, and related components. This does not apply to the accessory position of the ignition switch.

List of compatible 914 dizzy's:

Bosch
009, 050 distributor 4 CW 79 1847A 91847A
Bosch
0231305091 6 CW 79 1869 91869
0231127005 8 CW 1888
0231146026 4 CCW 1848
0231178006 4 CW 2845
0231178017 4 CW 2842
0231186023, 0231146077, 0231170307 4 CCW 1843
0231308009 6 CW 79 1869 91869
JFU4 (Bosch) 22100B03G0 (Nissan) 4 CCW 2841
VJ 3BR 2T 3 CW 1832
VJ 3BR 4 3 CCW 1831
VJU 4BL 33 4 CCW 2846