87 crx b18 swap

how do i set up the fuel system for a b series swap into my 87 crx? would i need to get the fuel tank from an integra or is there any way of making the fuel tank work for the swap?

It's not so much the fuel tank as much as it's the fuel pump. You need to make sure you get a fuel pump that will be able to support the pressure needed to keep the b18 from running too lean.