so his value range here is:
1 combo (supposing he flats that pre)
- TT 3 combo (supposing he doesn't 3bet that pre)
- 66 3 combo (supposing he doesn't 3bet that pre, against your co open).
I don't think he ever does this with top pair.
It depends on how much bluffs you think he can have (ie. on his tendencies).
If you suppose he can do this with air/gs, call but giveup turn.