D16a1 engine swap

Ok I am lookin to do a swap with my friend because his stock engine is shot.. hes got an 89 CRX dx and we wanna drop a 88 ls in there... I would like to kno what i gotta do in regards to rewiring like I suppose fuel injectors cuz its going from 2 to 4 injectors and so forth... any help will be great.. thnx

ok never I kno the wiring I just need help with the tranny... Were gonna put on the crx tranny for now. What do I need to switch in order for the tranny to fit and slide in. Like we need the tranny clutch and flywheel.. is there anything else I need?