Gross turn card in 4bet pot vs maniac

[RiverFenix]

Villain is 65/30/3. Open m/r a ton pf. Floats in and out of pos. Overbet bluffs. All the standard maniac crap. Heros image is TAG.

Hero has $130 and QQ[img]/images/graemlins/spade.gif[/img] [img]/images/graemlins/diamond.gif[/img] in BB, villain covers

.5/1 6max
PF: TAG raises to 4, Villain m/r to 8, folds, Hero raises to 22, TAG folds, Villain calls.

FLOP ($47) : 8 [img]/images/graemlins/diamond.gif[/img]6 [img]/images/graemlins/heart.gif[/img]5 [img]/images/graemlins/diamond.gif[/img]
Hero bets 35, Villain calls

TURN ($117) : K [img]/images/graemlins/diamond.gif[/img]
Hero checks(?), Villain bets 50, Hero has about $70 left