So I recently got a shiny braviary in GTS (glad I didnt have to give a level 1 zekrom) but its level 54 and I dont know if I should EV train it so it can get the stats again so if its not late ll give him friendhsip berries taht as far as I know lower EV's.
There is no level too late to EV train, ev training can b done at any level as long as EVs aren't maxed out.
Source: experience