Dude, you got the same valve cover set up as mine below! You don't see that too often, as I was told those are hard to find now. You will do 6,000 RPM all day with that girdle set up...Tight! Do you happen to know the torque recommended on the acorn nuts? I noticed a couple of mine got loose, and I just snugged them down a bit with a wrench not knowing the torque. In looking at your photos it seems like the acorns just hold the cover onto the main bolts and therefore I just assume minimal torque on those acorns.
A3 Aluminum Heads by JanDaMan, on Flickr
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