WHAT AM I LOOKING FOR ON MY A/F RATIO

[THE ICE MAN]

I checked out RBR racing and according to their chart they want to see a 12.5 to1 without water and then somewhere around 10.5-11.0 afr with the water injection based on 15-22% water injection
They say 12.5 to 1 air fuel
and 10.5 -11.1 AIR to (FLUIDS) RATIO water and fuel
They do the salt flats thats 2-3 mile runs!
and i am sure they went thru plenty of motors for their research

we are currently running a turbo 1000 now with stock compression
12.1 and we set the air fuel to 11.3-11.5 with 105.5 octane
minus 2 degrees timming
with myself as pilot i went 201.1 MPH in 9/10's of a mile

Heres were i dont know how far to push it
new bike 10.5 comp. and water inj
so maybe i can go a litle leaner than 11.3-11.5 with water??
or have my target 11.3-11.5 with water
Velocity racing does turbos for bikes i think they had problems at the begining setting them up in the 12. ? to 1 range without water on a 1 mile run so they went to the 11.3-11.8 range without water and everything was good.