Hi Jeff,
Comeon, don't be a weenie. I had never installed or tuned EFI before I started. I have tuned carbs though. Tuning carbs sucks compared with EFI. I found that the wiring was the hardest to do. I have rewired a complete car one time so I know how to wire. But the EFI was harder. Not too hard though cause I did it and it worked fine.
So buy the EFI. It is by far the coolest thing on a car beside a turbo.
I got a map with my EFI for a motor that was close to mine. The map was so far off that the motor wouldn't run. So you have to be careful getting a map from someone. You can look at the map and make the whole thing richer and be safe to get started.
EFI for me has been a great exp.
Oh yea one downside to EFI is that my craptop took a ***** today and is in the shop. So no tuning for me.