Where are the fuel injectors located on my 2003 astro van with the 4.3 L SFI engine?

Each cylinder has an injector( 6 in all) and they are electrically controlled, they are on the top of the intake manifold located above the spark plugs but on the top side of the intake, they each have an electrical connector that plugs into them at the top, some removal of other parts may be neccessary, but if you have the right stuff you should be good to figure this out.
Have Fun.