anyone know stock '68 alternator amp output

slantys were.....................26
all others......................... 34.5
except HD and A/C, were ..41
and Special Equipment was 51

All tests are at 1250 rpm, and at 15 volts at the alternator stud.
This is a test point and not the maximum output.
So says the 69 FSM

I other words the output may vary with rpm,and where you measure it, and at what voltage, and maybe even on the alignment of the stars,lol