WTF? 4-bet min raise?

[Rolon]

PokerStars Game #9634201689: Hold'em No Limit ($5/$10) - 2007/04/27 - 14:30:39 (ET)
Table 'Sagitta II' 6-max Seat #3 is the button
Seat 1: bogey54 ($929.10 in chips)
Seat 2: DaveMacD ($606.25 in chips)
Seat 3: rolonrolon ($1257 in chips)
Seat 5: Larzza ($1000 in chips)
Seat 6: doctorofdoom ($306 in chips)
Larzza: posts small blind $5
doctorofdoom: posts big blind $10
*** HOLE CARDS ***
Dealt to rolonrolon [Kd As]
bogey54: folds
DaveMacD: folds
JaBlue leaves the table
rolonrolon: raises $25 to $35
Larzza: raises $35 to $70
doctorofdoom: folds
rolonrolon: raises $130 to $200
Larzza: raises $130 to $330
rolonrolon: calls $130
*** FLOP *** [8s 4c Qs]
Larzza: bets $670 and is all-in
rolonrolon: folds
Larzza collected $668 from pot
Larzza: doesn't show hand
*** SUMMARY ***
Total pot $670 | Rake $2
Board [8s 4c Qs]
Seat 1: bogey54 folded before Flop (didn't bet)
Seat 2: DaveMacD folded before Flop (didn't bet)
Seat 3: rolonrolon (button) folded on the Flop
Seat 5: Larzza (small blind) collected ($668)
Seat 6: doctorofdoom (big blind) folded before Flop


What the hell am I supposed to do here? Where do I fold beside the flop? WTF? This hand has me so messed up. I have no reads on Larzza..I don't play much 5/10 so he could be a huge donk or the best reg, I have no clue.