I've got two 1947-late Ford pickups. Neither has the ignition resistor. So, I'm looking for 1.5 ohm coils. I ordered one off Ebay from Third Gen Auto. The ad said it was a Petronix, 6 volt, 1.5 ohm coil. Cool, that's what I wanted/needed. So, it shows up and I do some research on-line with...