Trying to pick off a bluff

[yecul]

$20 Party sng down to heads up. BB is 500.

Table was full of some LAGs and he was the biggest of them all. Once we were 3 handed he was limping or raising (often minraise) every button. Built up a huge stack early with a terrible call, lost most of it, and won it back with gambool.

I figured he'd raise a bitter K or pair preflop. An ace certainly wouldn't play this way. A random hand with an 8 was obviously very possible. But his style meant he's doing this with anything quite a bit.

Is this ever a good decision? The pf raise of mine... well... yeah, not a big fan, but go ahead and say it was bad anyway.

Villain (3395)
Hero (4605)

Hero posts small blind (250)
Villain posts big blind (500)

Dealt to Hero [ 6h, Ks ]

Hero raises (1005) to 1255
Villain calls (755)

** Dealing Flop ** : [ Ac, 8d, Ad ]

Villain bets (2140) All-In
Hero calls (2140)

Just open push preflop, villian only has 6BB.