Sorry to respectfully disagree with Prine ....but I once put an electric leaf blower (120v a/c 600 cfm) on my 440 Charger (just for expiremental purposes only...drinkin' beers and havin' one of them Hmmm??? I wonder IF moments) with the following results . No measurable boost ...but "instant" throttle response . Perhaps if you could decrease the distance between the impeller and the scroll housing somehow you could possibly get some boost ? My best Bench Racer Guesstimate is that my leaf blower set-up was achieving 100% V.E. from idle to 6000 R.P.M. ?
