78 gs1000, Yosh 1085 timing

[Fjbj40]

I have the Yosh 1085 kit in my 1000. It has dyna ignition and accell coils. Ported and polished, header. I burn supreme fuel.

the comp ratio is 10.5:1, should I be running the stock timing?

17 btdc @1500 and below and 37 btdc @3000 and above is in the manual

I borrowed an adjustable timing light from a buddy. So when I dial in 17 degrees, it should light up the T or F mark? My understanding is the T mark if at 17 and the F mark if 0, same if I dial in 37?