Tuning
What changes you make to the carb and vac or mech advance, duble check timing... in my experience it isn't always set it and forget it. But I may be doing something wrong...
The set it and forget it car for me is my 5.0 fox body but that has a computer for the "tweaks" whereas the older mopars the tweaks are done by hand.
For example a tune up session may consist of setting the engine up , test driving it seeing if you like it coming back reading plugs double checking timing ,rejet set timing again test drive
read plugs check vacuum, re set /ajust vacuum and mech advance etc. to get even more deeply involved youd use engine tuneup equipment like a scope and a chassis dyno etc. The
latter mentioned tools are now obsolete but thats what a 70s tune up shop had, today it would be the test drive and youll know when its running good youll have a smile on your face
but youll aslo feel the power band the carshould pull all through the rpm range of the cam, you can feel when a car is breaking up in the rpm range or when its falling flat that is what
you are looking for take it out on a 65 mile per hour or faster highway etc.