My strategy with overpairs (especially the big ones, AA and KK) is pretty similar to sets. Again, barring a highly coordinated board or some ridiculous turn and river cards my strategy will be bet, bet, shove.
Example:
In EP you have,
You raise and get called by a fish in LP. The boards run out,
You should bet, bet, shove.
Example:
In MP you have,
You raise and get called by an SLP in the SB,
The board runs out,
You should bet, bet, shove.
