Most people will never have to map out a fuel/timing curve; (luckily) this is especially true for cars like yours and mine. Tuning software like LS1 Edit, CMR, and SCT for example have built in (often automatically updated from the internet) approximation maps that are tweaked by the person doing the tuning.
As far as tuning carbs, I learned something today. The instruction manual specifies taking the carb off the manifold before changing the jets. I thought to myself, "this seems stupid." Next thing you know, "tink, tink, tink. . . roll . . . uh-oh."