Definitely agree that the EFI systems are more efficient than a carb when setup properly, especially if you have different elevations. I've added a return line to my fuel system in case I ever want to switch. The issue I have is that the EFI systems stabilize the idle, removing some of the rumpety rump that I enjoy. As Mike points out, some of the systems have timing control that could be turned off to get a better idle sound and drivability, but that's kind of defeating the purpose of the investment. Here's a good article on it.

https://www.onallcylinders.com/2015/...y-not-like-it/