Is This too Weak? Folding KQo when A Flops

8 Handed

PREFLOP
Hero BB: K [img]/images/graemlins/heart.gif[/img] Q [img]/images/graemlins/spade.gif[/img]

4 Folds, CO Limps, Button Folds, SB Calls, Hero Raise, 2 Calls

FLOP: A [img]/images/graemlins/club.gif[/img] 3 [img]/images/graemlins/diamond.gif[/img] 7 [img]/images/graemlins/heart.gif[/img]

SB: Bet

I have no info on the SB except in 2 orbits limped in twice and always folded on flop, so this was the first time I've seen him bet.

I folded. Thoughts?