Come over the top with my 44 here?

[Ortho]

Party $11.

Villain is very loose (like 65s loose in the early going) and has been raising with probably 1/3 of the hands he's played. I'm not really sure what his range is, nor what to make of the raise, but it includes at least most aces and all pairs, and probably any 2 broadway. If he had limped, I'd think there was a good chance he would fold to a push, but I haven't any idea if he can lay down after putting 250 in. I'm sure he'll call if he has an overpair to my hand or a big ace; I'm not so sure about something like KT.

UTG(2650), UTG+1(775), and MP(2000) all fold.

CO (970), makes a 2.5x raise to 250, leaving him 720 back. Button (730) and SB (205) fold.

I'm in the BB with 4[img]/images/graemlins/heart.gif[/img]4[img]/images/graemlins/diamond.gif[/img] and I have 620 before posting. I'm wondering if I should come over the top all-in. I think he'll often call, but I get 770:520 on my stack if he does. I've been folding this most of the time but I'm pretty clearly not playing enough late since I started at Party and wonder if this is a good time to gamble, or if I'm essentially just calling an all-in with a weak hand.