"adjustable main jets for a 94 carburetor"
(more sources-of and references-to the adjustable main jets)

All I know is that my engine starts easily, runs smoothly, accelerates nicely, and gets good gas mileage - all are better compared to the original 1960 Rochester. If I am trying to impress someone, the gas mileage suffers.

If I can get my act together, I'll try to attend "Homecoming" next year,

Nonetheless, as always, thanks for the comments, explanations, and suggestions.