Villian is 43/3/0.5 -60ish hands.

Party Poker 2/4 10 handed

Preflop: Hero is in the Hijack with Jh Js
Utg+1 calls, 5 folds, Hero raises, Villian 3 bets, all fold, Hero calls.

Flop: 9c, 7s, 3h
Hero checks, Villian bets, Hero raises, Villian 3bets, Hero calls.

Turn 5s
Hero checks, Villian bets, Hero...

Just got pokertracker and have a few questions;
How reliable is 60 hands (from this table, not datamined)?
With villian being that passive was it wrong to c/r the flop?
Should I fold to the flop 3bet? The turn? Call down?

I think 60 hands is enough to know that:

a) he doesn't raise many hands pf (maybe AK, AA-JJ), and he probably 3-bets even less.

he's passive, so he's probably not 3-betting AK on this flop.

I think the flop c/r is fine. Once he 3-bets, I'm done.