PokerStars - $0.50 NL (6 max) - Holdem - 4 players
Hand converted by PokerTracker 4

CO: 212.22 BB (VPIP: 37.28, PFR: 17.16, 3Bet Preflop: 8.45, Hands: 175)
Hero (BTN): 110.48 BB
SB: 100 BB (VPIP: 23.72, PFR: 18.02, 3Bet Preflop: 8.89, Hands: 340)
BB: 102 BB (VPIP: 24.67, PFR: 19.28, 3Bet Preflop: 9.17, Hands: 628)

SB posts SB 0.5 BB, BB posts BB 1 BB

Pre Flop: (pot: 1.5 BB) Hero has J 7

CO raises to 3 BB, Hero raises to 9 BB, fold, fold, CO raises to 18 BB, Hero calls 9 BB

Flop: (37.5 BB, 2 players) 2 8 T
CO bets 19 BB, Hero raises to 56 BB, CO raises to 93 BB, Hero calls 36.48 BB and is all-in

Turn: (222.46 BB, 2 players) 6

River: (222.46 BB, 2 players) 4

CO shows Q Q (One Pair, Queens) (Pre 83%, Flop 59%, Turn 75%)
Hero mucks J 7 (High Card, Jack) (Pre 17%, Flop 41%, Turn 25%)
CO wins 219.46 BB

I know the flat 4bet is marginal or quite bad?? but the prize is really tempting. any thought on my 4bet?
as played, flop i think the raise can get AK to fold, but if not AK we are only 40% which is def -ev, should we raise here or just take flat flat line on flop?

40% is not -EV. It's also better than calling flop and folding to a possible turn shove.

Fold pre.

3b could be fine

calling 4b seems bad, even if he did make it a little small

prefer flatting on the flop, don't think anything in his 5b range is folding here often and that's really the only reason we'd be raising to capitilize on FE