I'll be running a turkey pan soon, but I don't agree with the manufacturer's maths.
MASTERTOUCH327.COM
2" x 10" = 20 square inches. = .13888 square feet.
60 miles/hour = 1 mile per minute.
1 mile = 5280 feet
5280 x .13888 = 733.3 cubic feet per minute.
They claim 8000 cubic feet per minute.
That means somehow this scoop is supplying about 10 times the volume the engine needs.
You would need a scoop of 1.5 square feet to get 8000 cfm.