b18a swap

Hi i was just wondering if it would be ok to put a b18a into my 95 civic? i mean i know it wont pass for emmsions because its old, but what does emmisions actually look for when you have a swap? do you have to go there with papers for the motor? the motor will be rebuilt for FI before it goes in, but i was just wondering if it would be ok. I've seen a couple of people in this board with older engines, so i'm not sure. Any help or info would be great. I'm from VA if that matters. Also, what about the first gen. b16's? would that wire up to an OB1 car? THanks again!