Can i put a 305v8 in a 1996 camaro witha 3.4 v6 will it bolt up or what will i have to change?

you will have to change the motor mounts, trans, computer, probably the fuel pump and the rear

How does your 96 camaro have a 3.4?

You can do that but why would you want to put a 305 in? Truthfully your 3.4 would be faster than your 305 because it's a heck of a lot less weight. Its true that putting in a 305 will make it a "V-8" but still......... maybe im wrong? idk.... maybe its the 3.8's that you dont wanna switch to a 305..if ur gonna go with an 8 id do a 350... but im a girl what do i know??