I use whatever I can still order, and that runs as much advance as I can get. Then I cut/grind/file the stops to get me at least 20/22 degrees, which makes my engine happy.
I saw one guy cut the stops right off, and drilled and tapped a hole in the housing to place a screw in a strategic spot so he had an adjustable plate-stopper. Then he really had a "fully adjustable" system. I thought that was pretty clever.
If your engine is stock, that would probably be over-kill.
What are the specs on that can?
