Here are a couple interesting Gonks I did on gbauer's car, with the 232-232-108 Erson TQ20 cam:
2.75-1.57-1.00 200-4r gears
2.18
9.85 at 69.9
15.56 at 85.2

3.06-1.63-1.00 700r4 4L60 gears (I JUST changed the gears no other changes)
2.13
9.82 at 69.7
15.55 at 84.9
The wider ratio has the advantage of .03 thru the 1/8 mile, but only .01 at the quarter. The RPM drop offsets most of the small gain.
Instead I just tried swapping to a 3.90 gear instead of the 3.55, it seemed the easiest change. With the old 200-4r 2.75 ratios this Gonked to
2.14
9.78 at 69.7
15.47 at 86.0
That's a .08 gain in the 1/4 mile, and with the overdrive, still plenty good to keep the cruising revs down.

Going to a 3000 stall and staying with the 3.55 rear gave
15.39 at 85.3

And the 3000 stall with 3.90 gears was best of all of course:
15.30 at 86.1

Of course we can keep going forever, another cam swap, etc, I was just surprised that the 3.06 1st gear didn't really seem to help, in the Gonkulator anyway.