This incident with the Spit 8s and the Ki43s is well covered in "Air war For Burma" by Shores. The long and the short of it is that Spit 8s were stationed at a forward Chindit Airstrip named " Broadway". It was attacked by 15 Ki 43s that engaged two Spit 8s that were able to get airborne. One Spit was shot down in the air combat as well as at least one Ki43. Four spits were destroyed on the ground. The air combat never got above 2000 ft. Not exactly a screaming endorsement of the Ki 43.