Originally I used the original 4.3 intake and filter. Eventually I came across an airbox for a 350. I bought a K&N filter to fit it and supplied it with cold air from under the front bumper.

	Here is the scoop that was built under the bumper. You can see the hole of the right hand side where the air is forced up.
	This is a bad picture, but hopefully you can see the metal ducting. It is actually 4" drier tube.
	Here you can see the flex hose completing the run to the air-box.