Odd hold'em structure

[PseudoPserious]

Hi,

I need some input on how to adjust to this (slightly odd) variation of holdem.

The blinds are .25/.50. The small bets are $2. The big bets are $4. THERE ARE NO RAISES --- there's only a single bet on each street.

Let's say the game is played 9-handed, with 6-7 people in for $2 preflop and 3-4 staying for the showdown.

What sort of hands are profitable in this game?

Thanks,
PP