Hey guys so i installed a petronix ignition into my '68 p1800s and boy what a difference! Now i just gotta do the carbs and itll feel like a new car! Only issue i am having is the tachometer. Before the petronix, the points ignition system was installed and with it the tachometer worked just fine. There is a tab that sticks out of the distributor where one of the white wires coming from the tachometer would attach to. The other white wire coming from the tach would goto the bosch blue coil. Well the petronix does not have this tab, so i wired it as per the diagram that came with the petronix from ipd and still nothing. I have burned out two petronix;s trying to swap wires around to see what happens and i dont want there to be a third! Any help would be greatly appreciated!