I did the trigger wheel, and liked what it did. But understanding what it's doing is important.
Advancing the timing will give the Valkyrie a better low end grunt. At the lower revs you will feel more power.
However what you gain at the bottom end, you will loose at the top end. Because the Trigger Wheel advances the time across the entire Rev range you run out of timing at the top end. When the trigger wheel was installed on my bike it would top out at 105 mph (it didn't have much power up there either).
IMPORTANT! - If you install the Trigger Wheel you will need to run 91 octane fuel!
What you need to do is decide on what you want in your bike. Most like a better low end because who often rides over a 100 mph. However some don't like to be limited on the top end.
You do have other options.. If your bike is a Standard/Tourer, you can get an Interstate ICM which will give you timing advance and you won't loose anything at the top end.
Your next option will require a lot of work. Way back in the day the company DynaTek made a Ignition Module (Dyna3000) for our Valkyrie's, but they no longer make it. If you really, really hunt you might be able to find one. Why do you want a Dyna3000 ICM? It's adjustable! It has different advance curves that can be set, and those curves are across the rev range so your gains are across the board.
I now have the Dyna3000 ICM, and sold off my trigger wheel. I played with the different advance curves until the bike felt the best. I also noticed a 3-5 mpg increase in fuel economy.
Hope all this helps, and good luck.
DarkSider
