They keep changing mct at jfk, but this is really tight, so things specific to,your situation will matter, how close to the door will you be, do you have global entry, tsa pre as you will have to reclear security, will you have checked bags, keep in mind that your first entry point in the us you need to pick up your bags and recheck, how mobile are you, jfk has some real long walks between gates, is this one ticket,

i personally would only do this if there were no other decent options but with ge, tsa pre, seat near the exit your odds greatly increase