This is the best picture I could get installed. It took some doing with MSD to buy the parts for the mount. They sell the crank trigger pieces individually but the people on the phone aren't real good at knowing what is what. The blank aluminum tab came from a universal kit they used to offer and the mount is just a regular small block deal. If you go this route take a deep breath and maybe a stiff drink before you call them it was interesting. Maybe its better now that Holley owns them?
The SD concepts piece wasn't around when I did this project but it looks very nice. I have his adapter to use a Jeep Cam sensor in place of a distributor and it is very nice.
I need to remove the wheel and clean it up and paint it or have it anodized. It looked so pretty in its bare billet form but it is starting to rust a little. I think he sells them coated, this was an early one.