*Spark Plugs, Bleeding Knuckles, need SVXperts opinions!*
 

Pulled and replaced plugs tonight. That last (drivers side rear) plug is a mother ****er. Haven't had such fun since my '69 Super Bee w/383 Magnum headers!!!!

Would you take a look at the image and tell me how my engine is performing? Looks OK to me, but I'm no expert!

Also, were these the original plugs?

I replaced them with NGK Iridium IX, was that a good upgrade?

http://www.subaru-svx.net/photos/files/wynndi/18189.JPG

They look perfect.

One of your plugs is on backwards (I couldn' t resist)

..............and one of them is making a grinding noise during light to moderate cornering!