b16a Parts

Im going to be putting a jdm b16a1 in my 89 hatch, When im looking for parts, there are like three diffrent car and yrs that i can get parts from. How do i know which ones to use for some things, like fuel rail, injectors, etc?

A couple of sites I have bookmarked...

http://users.ev1.net/~shinglin/cars/crx/swap/swapinfo.html

http://www.geocities.com/teampimports/b16a.html

Ya i have those sites too. Im wanting to get AEM fuel filter, fuel rail, and Fuel pressure regulator. I thought i was looking for a 90-91 si is there any other models i can compare it too?