For the bevel I used a chamfer bit on my router and for the notches I used a table saw. Cool thing about aluminum is wood working tools cut it just fine. I cleaned the cuts up with a mini air belt sander and die grinder. It took a fair bit of trail and error since the sides differ. I also didn't want to take too much off and risk putting a hole in it.
Note the small 1/8" NPT hole on one end. I'm going to put a street 90 there for a fuel pressure sensor. Again, just an effort to get ugly stuff out of the line of sight.
I will cerakote these the same color as the valve covers and coil covers, along with the intake. I'll probably get all that done within the next week or so.
I think there are some out there with and without clips.