They’re combinations/abstractions of multiple things. Ignition Timing would presumably cover not just spark advance but spark plug “temperature” and gap, and Cam profile, for instance, would include Lift, Duration, Cam timing and Overlap as well as the actual shape of the cam lobes. They’re all combined like that because, for the most part, you’d want more or less of all of them rather than more of some and less of others. And because this isn’t an engine simulator, but an engine parameterization that will be a part of a larger game and as such it needs to have a certain level of simplicity.
Don’t worry about the numbers, they aren’t really comparable to any real world figures. Experiment and see which get you closest in terms of the desired output. And don’t be surprised if your results aren’t a perfect match to reality as, again, it’s not a simulation and it was never meant to be.