7 handed
5/5

I(1500) raise UTG to 20 with A234J, HJ(1800) (whale) calls, CO(900) calls, SB calls, BB(500) calls.

(100)
AK7
Blinds check, I bet 40, HJ calls, fold, fold, BB calls.

(220)
4
BB checks, I bet 120, HJ calls, BB folds.

(460)
T
Hero?

1) how would you play flop and turn?
2) how much would you bet river?

Many different ways to play flop and turn. For example, I think betting full range on the flop and checking full range on the turn are OK.

Against a weak player, I think you should just potski river.

Why check full range on turn? Shouldn't we have quite a bit of A23?

Yes we have. They have more 23 though and weak players will always bet it for us. Against other hands two streets of value is fine. I'm not saying this is the only way and I'm not even saying it's the best.

I am a bit hesitant to bet this flop 5w from early position with low nut potential and so many poor runouts. The best 2p we can make completes a straight. Using a small size its fine i guess, but as a rule of thumb when many players see a flop we normally want to be betting larger to get more value from the top of our range. Betting smaller with monster redraws is ok. But your smaller sizing often strongly suggests you do not have ak+. Tldr: I do not think a high frequency small cbet is the correct strategy on flop.

I think your line on turn is fine and agree with sizing up on river to extract value from same low or worse lows and put pressure on better 2p and sets.

I would check call flop. Checking around is no problem. I would pot turn and river vs whale