I'd say there are also a lot of Adxd in his
range (probably all of them, although he might
shove over
otf with these, but who knows). Maybe also some A8 or A4. Lots of Kx also.
You can't
fold the
turn with these odds of course.
About the
flop raise I am not so sure vs 3. When you
raise here you pretty much decide that you are going to
stack off if anyone calls, there are tons of bad
turn cards, and from what you said SB also has AK in his
range when he bets the
flop. I tend to play these spots passively to give myself an easy exit. It may be a
leak though.
If you are very sure that you're
ahead of all of them, there is also the
option to just
shove the
flop.