do i need governer weights???????????

just finished rebuilding my 727,it has a fully manualised cheetah valve body with no low gear braking,i was just wondering though because my instruction installation sheet with my valve body says if transmission is out of car remove the governer weights,what happens with this valve body if i dont remove the oem governer weights,what will be the difference with or without them?????????????????????????????????????????????? ?????????????????????????????????????????????
Author: matty wardle