This is VERY interesting and informative.

[SPOOLIN]

all of that theory changes a bit in drifting, where you see the hood shimmed up in the rear.

with drifting you get two benefits to shimming the hood.
1. while waiting in staging for your runs, the engine bay vents better with the hood shimmed.
2. when sideways, the airflow going across the hood pulls air from the trailing edge instead of hitting the windshield and creating high pressure.

are you kidding me?? My Drag car puts out shit TONS of heat, in the staging lanes, in the pits, DURING RACING. My hood isnt propped in the back and i dont over heat sitting idling. When sidways it changes the air flow that much? Are you KIDDING ME???? It looks dumb and has ZERO Function. GTFO