Getting started with Aerodynamics

[exwestracer]

That airbox sits VERY low over the top of the carb. The NASCAR engines use a tall manifold and spacer which keeps the bottom of the box above the distributor cap. It probably wouldn't clear yours.

If you are going to vent the hood, be sure the core support is sealed off to the underside of the hood. I've seen those vents "steal" cooling air from the radiator when not properly ducted.



If youre at 4" to the frame, you're right; you can't go much lower. Lowering the car reduces overall frontal area (as opposed to putting a taller air dam on) as well as improving downforce by keeping more air out from under the car.