>Does someone have the measurements [inches or cm] from 0
>on a stock-sized crank pulley for 7.5 and 30 BTDC? I seem
>to remember 7.5" being about 3/8" to the left of 0.

Measuring on a stock-sized degree wheel I never have installed:

7.5 degrees =  .45" or
                3/8" or
                11 mm

30 degrees =   1.75" or
               1 3/4" or
               44 mm

I'm measuring as the crow flies, not rolling around the diameter.

--Ken