I can remember the trick of the day that the Chevy street racers use to use on the streets in SO CA, they would turn the lid over so it let more air into the air cleaner body instead of having to suck all the air through the inlet tube shruggy
And Chevy engineers in 1966 use a open element with no air cleaner body around it on the 375 HP SS 396 Chevelle, not the 360 or 325 HP 396 shruggy

Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)