You guys performing the iriduim performance testing.

Just a heads up, but in performing tests using the NGK brand of Iridium plugs it was discovered that engine temps could be elevated to dangerous levels using an iridium plug. The ignition itself was a hotter unit but even using a "baseline" ignition power output level there was quite a rise in engine temps. The plug heat range may need to be modified to use the iridium electrode so keep an eye on the CHT's.

Looking forward to those test results.