v force 3r reeds mapping vs stock reeds

I recently did a top end (Piston/rings/v force 3r reeds) on my pro 800. Ive had a good map that worked very good in my pro. The only thing I have changed now in the combo is the reeds.
Has anyone got experience with changing from stock reeds to the v force 3r reeds? Did you need to change the mapping? if so anyideas where and about how much?
Thanks