Originally Posted by dubcac
NGK copper, I'd run a 7 or 8 heat range. You need to run colder than stock. Look for a BKR7E plug...thats what most people run under boost. You're also going to need to run a shorter gap.
Yep. I am running the BKR7E gapped to .030". Typically, you want to keep the gap as wide as you can without misfiring. This will put less strain on the ignitor.