Hello Paul,
Yes dark greens are the large flow injectors, light greens are not used very often so i expect it will be 803 dark greens. If its got dark greens then it will be chiped. You wouldnt run dark greens on the standard map. it wouldnt run right at all.
Correctly setup you could get between 300 and 330 BHP which is more than enough at first and is a very quick car.