then i guess he will learn some thing like ftg , sealing tech , rasengan ,
with speed and stamina he will still be top 10
he can't mold his chakra properly due to kyuubi
so he will be doing fine without kurama . and don't underestimate his sage mode , also ma & pa can join him so sage jutsu won't exhaust
his chakra is still more than sasuke
i'm implying one more thing if kuubi is not inside him that means minato is alive , not to mention how nicely naruto will grow , may be he can perform genjutsu cause his chakra molding skill will be better and
finally i'd say
just combine kushina's chakra with minato's ability and u'll have
naruto without kyuubi
so still stronger than sasuke