25/50 Worth pushign for meatgame?

[oldfashiond]

Played a lot w villain, is verry laggy, and def not known for makiing folds, views me as solid, but versatile.

4 Handed 100BB stacks,I open 7 [img]/images/graemlins/spade.gif[/img] 6 [img]/images/graemlins/spade.gif[/img] UTG for 175, button and sb fold, villain calls

flop($375) 2 [img]/images/graemlins/spade.gif[/img] 5 [img]/images/graemlins/spade.gif[/img] 3 [img]/images/graemlins/diamond.gif[/img], Villain checks, I bet $300, Villain calls.

Turn ($975) 9 [img]/images/graemlins/heart.gif[/img], Villain checks, I bet $800, Villain calls.

River($2575) J [img]/images/graemlins/spade.gif[/img], Villian leads $1344.....

at this point, i really dont think this is a bluff, he would definately bet a lot harder if bluffing, im assuming he's putting me on an overpair( if he puts me on an over pair he knows im calling here), but im also assuming he would bet a lot more w the flush, knowing that im probably caling almost all bets, but almost definately not raising w jus an over pair....
So the question is, am i crazy to push here , knowing that he cant really call with anything that im beating, (really the only concievable hand, thats not some kind of stab hoping im on air, for him here is a flush). but not wanting to look too weak/ nitty and affect people paying me off down the track.

Does anyone just call here?