V is very aggressive, pre and post. will hood a wide 3bet range. loves to play for stacks post, but never seen him 4+bet light. he has just reloaded 400 and added a recent 150 for 550 stack.

Hero has 1k, has wild reputation but has been playing very tight today.

Limp, V raise to 20, call, call, Hero JJ flats (sizing if 3betting here?), BB fold, Call

5-way to flop (104) Ts8s3x

Hero lead 50, V raises 125, Hero calls (all others fold)
Brick turn Hero checks, V bets 150, Hero jams

Thoughts?

PF is table dependent. You can raise to $80 or flat here to set mine. With 4 already in the hand and more behind you probably want to raise here but I do flat at a table where no one can fold for pot control. It sounds as if you have a solid post-Flop image so you can take advantage of that here as well.

May want to go a bit more on Flop, any draws will be 'really' priced in after the first caller and then you have too many in the pot with tons of danger cards. Need to thin the herd here but V does that for you plus he can now lead the betting, which is what he likes to do. A larger bet will also help your get stacks in if blanks hit.

V Turn bet is pretty weak .. $150 into $350 leaving only $255 behind to bet into $650 if you call so I like the shove here. He is priced into calling for his strt or flush and lets you off the hook for any decision after the River card comes out. GL