To dyno or not to dyno?

Here is the first good pull (baseline) and the first change.
Just focus on the 80 mph to the top. That's when it was full power.
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Notice there was no AFR info.
Also take note that it really didn't matter. Hp went up throughout the pull. Mission number one accomplished.

The baseline info I supplied. Owner had no way to know this info, and it was really up to me as to what I wanted to accomplish.
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Made several more pulls after that.
Yes I had jets ready and made the changes quick. Pretty similar to when going to the track. Same with the timing light.