Man that looks great! I am working on a 72 c/10 right now with an LS swap and a similar intake. It's the Holley sniper setup for the LS3. Not quite as tall as that one, but it's pretty nice. 102mm throttle body. Trying to get someone else's screw ups ironed out and then it goes to the tuner. I just put a Vintage Air unit on it. Even though it's not quite tuned right, it still sounds strong. It's an LS3 GM crate motor.
That's an awesome setup and a clean truck. This is a 92mm setup for mine to go with my 90mm throttle body. I went with this intake because It simply makes the most post for a turbo application ls setup. Which is great for me at the track.