Well both my current 3.73 car, and that 3.50 car had M-21 transmissions (2.20 1st gear), and seemed like you had to rev that 3.50 car so much more to get it going, and then had to have the thing humming farther up the rpm scale to have the power band kick in. On the other hand I have driven my friends 4.10 car with the M-21 and I could hardly tell the difference with his and my 3.73 car. I could only tell once I got on the freeway that it was turning more Rpms at 65 mph.
I am not disagreeing with your math, just my interpretation behind the wheel
Just my 2 cents..
I think my comments are being misconstrued. Maybe I didn't come across very well. I was trying to explain that if you put a wide box in front of that 3.50 geared car, the 1st 3 gears give you better gear multiplication than your other example with a 2.20 box and 3.73's. I wasn't referring to my 3.07's.
2.20 x 3.73 = 8.20..........2.52 x 3.50 = 8.82
1.64 x 3.73 = 6.11..........1.88 x 3.50 = 6.58
1.28 x 3.73 = 4.77..........1.46 x 3.50 = 5.11
My 3.07's with a wide box really isn't too much different than your 3.50 gears and a 2.20 if you want to compare....Actually you could say the 2.52/3.07 setup is slightly better however not enough to tell
2.52 x 3.07 = 7.73.....2.20 x 3.50 = 7.70
1.88 x 3.07 = 5.77.....1.64 x 3.50 = 5.74
1.46 x 3.07 = 4.48.....1.28 x 3.50 = 4.48
On a side note, better gear multiplication in the first 3 gears of a wide box is why a lot of the PS guys that prefer a stick will choose an M-20 box over the close ratio, even the large rpm drop on the 3-4 is of little consequence with momentum on your side and the cars tend to run a little quicker this way.