Just a caution for anyone buying from big online parts sellers.. I just went to purchase good plugs to replace the "throwaways" that were in my engine during the first start, and I noticed the ones that are in it are TWO HEAT RANGES too hot for my application. They are bosch plugs equivalent to #4 NGKs! NGK part finder suggests a #5 for a stock engine, and their tech support suggests moving to a #5.5 or 6 for something that has higher compression and/or will be worked hard. Just because they say something fits your application doesn't mean it's right. Yes I know I should have double checked the applications guide first but I didn't.

If this thing had been tuned in closer than it is, I could have hurt something.