Ok i've had problem with system separators i guess, after set it up properly to decimal dot instead sheet works now.
Uploading updated sheet and Polynomial Equation seems to work but still i don't know if it is proper scaled if anyone could take a look.
Red KG/h is rescaled by Polynomial Equation based on Stock MAF.
Yellow is adjusted by hand so i could drive the car.
Blue marked cells 230kg/h seems to be my Stable Idle point that i hold on to.
Gonna test Red scaling in car, any help would be appreciated thanks.