Distributor Pickup test

Hi, I have a 73 dart 340 with a mopar performance Distributor, msd 6al. I want to test the pickup. Engine won't fire I have done extensive work on the entire ignition system. Tested and retested everything. Looks like the pickup is no good. I have a 73 Chrysler service manual. Basically they want you to use an old Chrysler test tool that I have no access too.
The only thing I've been able to come up with in my searches online is something from Dave's place - it has instructions on testing the entire ignition system including the pickup. According to the the article the pickup can be tested with an ohm meter and should read 350 to 500 ohms.
I had already installed a new standard electric # lx102 pickup from O'Riley auto parts. I checked it online it seems to be the correct part. When tested it was only 280 ohms. Ok I figured I just got a new junk part happens a lot lately - Chineseium.
I got a replacement lx102 today. Before I installed it I checked and it only tested at 300 ohms. Makes me wonder if it's another junk part, incorrect part or maybe Dave's info could be wrong. Can anyone verify that the Dave's place test is correct? The only other part I could find was at Napa an Echlin part mp881. Special order of course.
Thanks