you might need to retrim the plane during flight more
or it might snap roll more on one side than the other.
i crashed and repaired an Ace 4-40 so many times,the fuselage
was out of alingment. it basically had this same problem after the third crash.
it flew good enough for me to get my fix..

it did as stated above
you can try aligning the wing to the tail and add more right trust if needed.
you can also try heating the epoxy to uncure it. if you deem the tail needs coming off.
a dremel is nice to have