Changing the cam lobe position vs. the actual cam gear is what you're missing. Since the cam gear is the interface between cam position sensor and the ECU to fire the ignition modules (along with using the crank position sensor as well). By changing only the lobe position, the cam gear position stays the same, as well as being able to position the secondary lobe even further apart. Since our engines do not offer variable valve timing, the physical orientation aspect of older engines still holds true, even with two cams per head to play with.
