The injectors off your truck can swap with the ones on the new intake and fuel rail if you wanted to do that. But you'd be running a smaller LB injector. You can also buy adapters, I think ev1 to ev6 but check. The map sensor will work, may have to pull some extra wire out of the harness. On the fuel line deal you can run new line with a regulator, run a vette filter on the rail, or put the vette filter in the place of the stock one and run the return from there to the tank and run the stock feed line up to the rail.