QQ Overpair facing bet from OOP caller (400nl 6max)

[greggabe]

Going from memory here so bear with me. I have QQ on the button two callers in front of me and I raise to 20. Get one caller. I have pretty agressive image but have not had to show down many hands. Villian has been playing tight and not getting involved in a lot of hands. We both have over $600.

Flop 8d 4d 5c pot is $44 or so.

Villain leads into me for the pot. How should I play this? If the play is to raise, how much and do you fold to a reraise push? My thought here is that the most likely hands are small pairs to limp call a raise, maybe suited connectors so I am afraid of a set or maybe a straight. But he also could simply be on a hand like 9d10d or some other such draw.

[DoctorHandles]

[Xaston]

[greggabe]

[Xaston]

[k3nt]

Xaston,

Why does $400 stack = call but $600 stack = fold?

Honestly curious. Looking to learn something here. Thanks.

[Xaston]

[DoctorHandles]

[Xaston]

[DoctorHandles]

[kennyg]

call and reevaulate would be my line.