OK, so on my slant six I was running a 3 ohm Pertronix coil, no ballast resistor, with factory mopar electronic ignition. I'm swapping to a v8, and I read on the Pertronix website that the 3 ohm coil is for 4 and 6 cylinder applications, but for a v8 one should use the 1.5 ohm coil? Am I not...