Mike,
I think you're on the right track starting out with the carb. Get your car somewhat sorted, and when you have time, *maybe* consider EFI. I say maybe because, if its a track only car, the RPM and load ranges are comparatively narrow and a proper carb should serve you well. JM is right about fuel slosh. Some 4 barrel carbs deal with that better than others. I'm not the one to point you in the right direction there... I gave up on carbs many years ago. Maybe hit up OX for that one?
EFI is relatively straight forward once the foundation sinks in. In my opinion, starting from scratch, basic EFI is easier to grasp for most people. BUT, going all out is a real time commitment. Considering the time it takes choosing a system that meets your needs, installing it reliably, learning its interface (very different brand to brand), and optimizing the tune... you probably wont accomplish all the above in less than 200 hours. Its not hard, just consuming.