[jkeyzer]

What's the difference between the FI cam and the one for carbs? What do carbs need that the FI doesn't?

I can understand it not working the other way around.
I can also understand that you would want to change cams because you CAN with carbs and not be limited by the stock FI system.

But what is the fundamental problem with just sticking carbs onto an FI cammed engine?