090 is the distance from the front hub to the center of the rear axle.

A stand for Ford 3 speed transmission. If it was a G instead, then it would be an automatic. (auto was never available until '64)

01 means it has a 7" ring gear. Also means in is intergerated axle.

as for 74 horse... maybe with high test fuel and perfect weather.. 0 to 60 mph times measured in minutes instead of seconds. Very underpowered.

I will say this, You do have 1 of the first ones made. Yours was made in November. Ford introduced then in Ocotber of 1960! Hope this all helps in your decision.... If you do decide to get it,, please post some pics. Car **** is always welcome!