How did you learn,to tame big cams on the street?....

"back in the day" they would just put in higher static pistons and run available fuels. That's what I think it one of the biggest factors here - the available pump fuels are so drastically different. Another huge one is the enthusiasts themselves. I learned to drive on a400 4bbl Pontiac. Dad gave me a screwdriver and explained what "flooded" was and where to stick the screwdriver to hold the choke open and start it. Most guys that learned to drive in the 90s have no clue what non-automatic engine controls are, how they work, or how to adjust or modify them.
As for tricks - I believe ever situation is unique. What I would do for myself, or a guy in FL who drives the car year round will be different than what I'd do for a guy in Denver at altitude who drives only in the summer and only locally would need to do. So tricks include timing curves, carb work, and internal engine parts or work to make it all work on whatever is locally available.