Beginners,doing multiple modifications at once......

When I say one thing at a time, I am considering you already have a running, racing automobile and you are trying to speed it up. In that case, "I" would make one change at a time. I did not say one change each trip to the track. Run the car, bump timing, run the car, adjust suspension, run the car, jet carb. I figured anyone with any real racing experience would get what I was saying.