3.8 mph gain from no hood? Pics inside and input needed

View attachment 1715585923 View attachment 1715585924 View attachment 1715585925 I had the 3.8 mph gain by running the orange scoop and its' base only. Terminater throttle body was totally exposed to engine compartment. The aircleaner assembly only lost 4 hp on the dyno.
Would like opinions on why. I plan on testing various combos without the hood.

View attachment 1715585926
Author: admin