Dan it really depends on how you look at it. I've rebuilt a couple of carbs (both Rochester) and I think that in comparison EFI is simpler.

Yes you have the sensors that come with EFI but with carbs you have needle/seat assemblies, metering rods, jets, accelerator pumps, slosh tubes, floats and such. That's allot of moving, bouncing, floating, sloshing componenets.

In comparison EFI has the injectors, throttle position sensor and the throttle plate as moving components. See the list is much shorter .

I know the list of sensors seems daunting but when you get a basic idea of how they work it's really not bad. And converting to EFI is not as hard as it may seem at first.

I'm pretty used to the GM MPFI MAP sensor based systems so if I can help in any way be sure to let me know.

Abe