most indica dom autos will give you 10 to 100g after around 50 to 60 days
way too many variables but I`ve run a load of different indica autos, there good if you have tons of floor space but can`t get the area dark for a set period of time and use low intensity lights spread over a large area, best for if you have very low ceilings like 40 to 80cm
if you have over 1m I`d go with a sativa dom auto and go for 60 to 100 days you`ll yield more
once your going over 1.2m to 2m you may as well go with photo pure indica doms or indica dom hybrids if you can run 12/12 in the area
any particular reason you want to run autos ?