I am working on a 97 4.3 Vortec engine. I am removing the intake manifolds. I have the upper (plastic) loose. I removed all 10 bolts, the fuel lines at the back of the engine and all electrical connectors. The plastic manifold is loose and moves around, but I cannot raise it off the lower intake. Do I need to remove the screws (or nuts) where the fuel lines go into the plastic intake manifold??? Do the injectors come off with the intake manifold?????
BR