i dont like the front end on the 91-92 bodys it looks like a fish , anyways can i put like a 89 front end on a 92 car?

yes , it should be pretty much a direct swap . a small PITA if you do it . with cost , labor , and repainting . maybe you could learn to like the fish [ think shark ] look .

Doing it yourself would not take much time or effort at all, bolt it on. A body shop will paint a bumper for around $200-250. If you like the earlier body style better (I sure do), it's worth the cost and effort.

Im doin the same thing I have a 92 firebird my buddy wrecked and I was wondering if I could fit a camaro front end on it and keep my hood without too much bondo?

no

WTF is a "fasca" and what does this mean "possable" ???

thanks for the input