Just an overview on spark plugs for me, remember i'm using 13/16 plugs. #8 works for me from underneath, even with the starter installed. #5 even with the shorter wallymart socket with the rubber grommet out is super snug on removal at the last few turns. I liked the "lawn mower socket" because once I started the thread it was easy to turn till I needed to tighten with a socket.
On Daves oil filter question, while there is no clearance issue installed I wanted to fill the filter up when I was priming the engine. But I could only get it out past the headers sideways so was in no mood to spill oil all over myself and more lol.
I like Joe's Thermaflect tape idea, I'll order some myself on the next summit order. I'm sure I'll need something else next week lol.
Oh, and this thing is LOUD with open headers in my garage.