After two years of trying to determine why my 63 413 Sport was difficult to start particularly when cold, and even harder after it was shutoff when hot and left for 20 minutes to let the block heat sink, I was driving the car less and less.
Good neighbor and pal, Angad Singh suggested I dismiss my ancient and oem Mopar coil and put one of Pertronix's super-duper coils on. At $30 bucks, what did I have to lose? Cheapest tuneup I ever expended.
The car feels like it got a massive dose of testosterone !!!!! Be safe