Here are the views for Air-Flow type hook-up (believed original preserved trucks).
photo Late to the party, but Brad's first photo shows the hoses routed thru thin air to the engine instead of over to the inner fender and held in place by the double clamp in the grooves in the inner fender. The clamp is shown
Here. It's the thing that's kind of bird shaped (wings).
[on edit]Hmmm. Looked at the accessory manual listed and they don't show the hoses routed over to the inner fender.

I would think that would be a better routing to keep the hoses away from most of the engine, but apparently Chevy didn't think it was necessary. I wonder why they put those grooves there (and the double hose clamp).