[mythrilfox]

i think his range here is something like KQ/AQ/55/66/good flush draw. if you raise his calling range is comprised of hands that beat/tie you and possibly KQ. i mean, he probably calls with kq. but he probably dumps kqo preflop so from a bayesian standpoint there are 6 hands that beat you, 9 you tie with, and 4 you beat. i think calling is better against that range, and depending on his river action there are various cards you might be able to bluff him off a tie with.