Hero- young, hoodie sunglasses, Extremely LAGGY image in the 40minutes I've been at the table, no showdowns
Villian- 50yo super tan white guy, second most active player at the table, have seen him bet 2nd pair, has raised pre a good amount including from the blinds a few times, just moved his seat to be on my direct left and 3bet me his first hand there

We played one hand were I raised 910hh from MP he called from the BB, called a bet on KJ8hxx then folded to second barrel on a K turn

Folds to Hero OTB who raises to $20 with 97 villian calls from SB
Flop- ($45) 945 Villian donks $50, I raise to $125 villian calls

Turn- ($295) 5 villian Jams for $395, Hero?

I have a hard time ranging him here.

Sounds like your in a bit of a lag war here, so ranging very hard and is going to be very situational. I'm not even going to venture a try.

I would fold here. After you raise flop he probably isn't bluff shoving turn and your hand blocks a lot of the semi-bluffs he could have. It wouldn't surprise me if his hand is as weak as an over pair or better 9X but I doubt it's worse and your not getting the odds to chase.

Raise bigger otf. I would fold turn now because you block 67 and 78 combo draws, and if he's on a huge draw, he is more likely to be getting it in otf as opposed to be open jamming the turn.

It almost feels like he had a huge hand (big pair?) otf, but wanted to see a safe turn card before getting it in.

I fold here because not only we are getting a bad price, but given that turn is paired, you could be drawing dead. Even if you are against just an overpair, your two pair outs are no longer good.

I'm probably just flatting the flop with showdown value. But raising might be better, just make it bigger.

Turn is easy fold.

What was the point of your raise on the flop?
Are you trying to get better hands to fold?
In that case, what better hands do you think will fold here? Do you think that this is the best sizing to use for this goal?

Are you trying to get worse hands to call?
In that case, what worse hand do you think will call here? Do you think that this is the best sizing to use here? Do you think that a worse hand will call for more money since the the pot is already pretty big and you are only putting $75 more in there? Do you know that almost hand reasonable draw was just given close the correct direct odds to call here? And that you are likely to givem them a decent portion of the rest of your stack on the turn since you hand will still remain strong.

I think that your sizing sucks no matter what you are trying to accomplish.
You should either be raising bigger, flatting, or folding.
Here you have just middled your self where you aren't getting proper value from worse, never getting folds from better, and leaving akward stack sizes behind for pretty any plan on the turn.

The hand seems secondary to the levelling war that's going back and forth between you two. We have a reasonable chance to win the pot, so I'm not sure that calling is a terrible mistake. I'm wondering what the consequences would be of calling here, and showing that we really overplayed a hand.

What adjustments might the villain make in future hands, and could we exploit them profitably, out of position as we are?

Not loving the flop raise. V could be donking with air or plenty of made hands you beat - mid 65-88, 5-x, and 4-x. Your raise will blow him off these, and you are the one with the FD and position. If he checks the turn, he may call another bet with worse due to your image. He may bet again with air.

10,10+ not likely to fold to your raise. You are drawing against these and your draw just got more expensive.

On the other hand, there are plenty of sets in his range that will pay you off if you hit. Your raise is likely to induce a 3-bet from these that will blow you off your hand. Two pair also not impossible.

There are draws (A3s, 56, bigger FD's) but not enough of them to justify the bet.