LS upper radiator neck on water pump....

[LS short box]

I don't have the part numbers but on my LS swaps I buy intake stuff from intakehoses.com. They have a huge selection.
The Camaro has a blade style mass air flow sensor because it's a LS3 that you can't see on the bottom of the intake tube.
Pic of my 68 C10 intake. The engine is a 2002 LS6 so it has a mass air sensor right after the air cleaner. It's kind of like right behind the radiator cap.