Game was 20-40 mix, five handed.

I guess my basic question is what to do with a made straight or flush facing a bet from someone with a three of a kind board.

Action went something like: low card bring in, extremely loose player completed with a low door card, I called with a 3-straight (don't remember exactly but I think I had KT|9 (two flush), another player (main villain) with a J up called, Q up fold, and the bring-in called.

4th: loose player catches A, main villain catches a T, I catch a blank, forgot the rest. checks around.

5th: main villain catches a J, and so do I. main villain bets (with JTJ), fold, call, call (I only had a three-flush and a gutshot at this point btw... I probably should've just folded)

6th: main villain catches a third J (JTJJ), and I hit a Q to make a K high straight (board was 9xJQ). main villain bets, fold, hero?

I didn't think I should automatically give him credit for the FH so I called... Thoughts? Am I supposed to fold every time here?

7th: he bets blind. Hero?

I miss the stud games SO much. We used to have 3 tables of 15-30 at Casino Arizona and HE ate them up. But I'll give this a go even though it's been a long time:

4th got checked through. If I were main V and had anything I would've bet so unless you think he's the nittiest of nits and won't bet bec somebody caught an Ace he probably doesn't have anything.

Yes, you should have folded 5th.

You called 6th and once you did that I think that you've got to call the river. On the plus side I've always found that blind bet a bit fishy and more likely to mean that he doesn't have a FH yet. But, anyway, you called 6th and it's too late to chicken out now, imo.

Oh, I read OP again: V didn't raise 3rd either so he prob needs 7th to help. Call and pray.

Why call on third when your straight cards are dead? Fold fifth. Fold when he has trips on board.

Fold third, your hand's value is compromised by cards in sight, and if any of them play then likely more of your useful cards are gone. You shouldn't have to make any more decisions beyond that point because your hand is unplayable to start.

Fifth easy fold vs paired door. Your hand is dead, you are beaten in sight and the pot is smaller than normal due to no action on Four.

Sixth meh call I guess, you win the whole pot when he doesn't bet the river and maybe he'll bluffcatch with trips so there's a little value there. But when he bets the river you're usually toast. Betting blind is player dependent, sometimes it means he only has trips going in, you need to know that about this player if he's going to do it again so calling has both real and metagame value.

Short version, you should not have played this hand and should not have had to worry about later streets.

electrical, would you please look in on this forum more frequently so I don't have to wait so long to see what you have to say?

You don't give much info on main villain, so it is hard to say, but I am assuming his check on 4th means he isn't paired*. This in turn means that he isn't full on 6th, so you are ahead. I raise 6th. If he plays back at me, then it's time for a review.

As noted above, fold 3rd and 5th.

*Based on the assumption that this is a live mix game populated with hold 'em players. Hold 'em players love to bet their pairs. Stud high is the occasionally-spread game least understood by hold 'em players, so it pays to observe them and deduce which theories they are bringing from their hold 'em game to the stud round.