I got them through my local Napa auto parts. They have an online special and I got them for 42 with taxes. What prices are these going for? I've seen them online for $10 + each. I got them for a little under 10 each.
I can only compare them to the stock plugs but the idle is smoother, it also fired up faster and idle down to 850 faster. I installed these because I got Dizzy stage 2 93 and gapped to .028 like he recommended.