Chunli could kill a D-gray man Akuma. She is canonically the 3rd most powerful A-list SF character, putting her just under Ryu and Ken. Ryu has fought Asura who defeated gods single-handedly and Ryu fought very well. Chunli being just under Ryu and ken means she is insanely powerful. Also, Chunli (or guile) won the second SF tournament canonically. It is not known if it was Guile or Chunli, but 2nd place would not be bad either especially since Oro was in that tournament. Chunli also has insane strength and durability.
SPEED/AGILITY
Jumps out of a helicopter, lands on her feet
Jumping to the top of a street light
Avoiding Gunshots
Gets behind a superhuman before he can see her
STRENGTH
Kicks a superhuman upwards of twenty feet in the air
Choke slamming E Honda, who weighs 302 pounds
An injured Chun Li kicks Vega through a brick wall
Shreds a car by kicking it
FIGHTING SKILLS
easy disarm
Pretty specific kick combo
a Blinded Chun beats up 5 Kung Fu masters 1 2 3 4
ENERGY/CHI ATTACKS
Kikosho smashing through a steel door
Kikosho sending several cars flying
Knocks down a truck
DURABILITY
Tanks an explosion
Chun-li is basically a superhuman.
Also:
managed to overpower the Shadaloo dictator with Chun-Li weakening Bison with a powerful Kikosho that destroys part of the forest. When Guile urges Bison to surrender, Bison refuses and instead commits suicide by using all of his Psycho Power to make a huge explosion that blasted away, but didn't kill, Chun-Li.
Chun-li Kikosho much better than people think + She survived a blast as powerful as all of M. Bison's psycho power at once.
Chun-li has also defeated Juri Han who is extremely powerful. Powerful enough by herself to fight M. Bison 1v1 and win, she also killed a seth (unkown if it was 15) which is insane considering seth has basically all the moves and powers of the streetfighter roster.
Chunli could easily take down some D-gray man akuma's.