I'm having trouble playing my big hands when I have a lot of money in front of me. If I was shortstacked I'd get all my money in on the flop, but in this situation even after I pot the flop there is still a lot of money. I put villain on at least top two maybe w/ some kind of draw. I ruled out a set because I assume he would have reraised me on the flop. Should I play this more passively since I can't get all my money in on the flop?

Full Tilt Poker
Pot Limit Omaha Ring game
Blinds: $0.05/$0.10
6 players
Converter

Stack sizes:
UTG: $9.35
UTG+1: $8.45
Hero: $12.35
Button: $18.30
SB: $9.25
BB: $14.10

Pre-flop: (6 players) Hero is CO with A 6 5 3
UTG folds, UTG+1 raises to $0.35, Hero calls, Button calls, 2 folds.

Flop: 8 A 7 ($1.2, 3 players)
UTG+1 bets $0.6, Hero raises to $3, Button folds, UTG+1 calls.

Turn: J ($7.2, 2 players)
UTG+1 checks, Hero checks.

River: 3 ($7.2, 2 players)
UTG+1 checks, Hero checks.

Results:
Final pot: $7.2

I probably flat call flop. But i don't hate the raise either.

Rest is standard.

You can fold pre-flop, other than that it is about as standard as it gets

Reasoning?

TP+NFD+OESD (12 nut outs) is a definite raise for me.

I don't really fancy top pair or the straight draw. He can easily have a better "top pair" or a better straight draw.

I prefer flat calling flop and betting turn when/if checked to us. On turn we will have much more fold equity against a better hand or a better str8 draw.