Villain in this hand is CO and like 17/14, has been 3-betting me a lot on another table no idea if he's just gotten some hands or is doing it lightly though.

Full Tilt No-Limit Hold'em, $0.50 BB (6 handed) Converter Tool from (Format: Bet The Pot)

Button ($53.15)
SB ($42.90)
Hero ($128.30)
UTG ($72.55)
MP ($17.40)
CO ($194.30)

Preflop: Hero is BB with , .
1 fold, MP calls $0.50, CO calls $0.50, 1 fold, SB completes, Hero raises to $3.5, MP calls $2.50, CO calls $2.50, SB folds.

Flop: ($9) , , (3 players)

Hero bets $6.50, SB folds, CO raises to $22, hero?

Do I muck this since it's 3-way to the flop and I don't even know if bluffs are ever in this guys range?

I don't know what the best line is here.

I don't know how much I like the turn CRAI line because I think he'll check behind a lot. Your range is pretty obvious...so maybe the flop 3bet is best.