Tackling the pot raise... what do you need to have?

[weaselboy]

Our Hero holds [Ah Qh Qd Jd], $25 PLO-High at Party. .25/.50 blinds. Play goes call, call, call, I raise to $1, followed by three calls and a fold. UTG pot-raises to $7.75. No notes on this one, so I don't know if he's an aces-only raiser or someone who will take a fly with less.
The questions:
1) Was the $1 raise reasonable? I figure I've got a hand that can make a lot of big draws and quite possibly top set, so I want a bigger pot.
2) related to #1, is this hand worth a pot-raise from me, given that I'm only in the 4th action seat and can't make the raise all that big?
3) Is what I'm holding good enough to call the villian's pot-raise, and/or is it worth an all-in push?