Iridium spark plugs?

[Mach 1]

Why? Why did the platinum allow higher timing? Platinum plugs retain heat, which goes against allowing higher timing the way I understand it.

If you can present a logical explanation, Im game, but to the best of my knowledge, platinum plugs dont conduct as well as your standard copper core, and retain more heat, both bad for performance.


And you must quit believing everything you read in a magazine, MM&FF or not. They lie most of the time, and they are paid by advertisers, whos products they push, which produces results that are fudged. 8 hp from a "dyna coil"? The late model factory ignition system is very efficient, and I dont buy that much gain from an aftermarket ignition, especially on a stock car.Hey, I got some beach front property Ill sell you real cheap....its in Kansas.