What is the range in degrees for the timing window on 2F. (1 Viewer)

[fabiodaddy]

I know the pointer in the middle of the window is 7*, but does anyone know what the top and bottom of the window ends up being? FSM only mentions the 7* on the pointer.

Reason I ask is that I just finished up my AFI TBI install and they recommend the base timing be set to 0*. I have the mark just at the upper edge of the window, but not sure where that puts me.

 

[Mace]

Use the line instead of the BB. It's TDC..

 

[1911]

I know the pointer in the middle of the window is 7*, but does anyone know what the top and bottom of the window ends up being? FSM only mentions the 7* on the pointer.

Reason I ask is that I just finished up my AFI TBI install and they recommend the base timing be set to 0*. I have the mark just at the upper edge of the window, but not sure where that puts me.

In my experience, it's about 3 degrees from the pointer to the bottom of the window - that's what I remember from using my dial-back timing light and setting my de-smogged 2F to run with 10 degrees of base advance.