Like I said before, you'd have to fab something-just like with any roots type if you want to drop the heat soak. A slant gives you a couple square acres of space on the left side of the engine bay. Those blowers draw the air in from the rear, so if you can stitch together an inlet mated to a 4150 flange, it would draw through, then fab the discharge side into a plenum into your intake ports.
Early Buick T Types used a draw through turbo system-very odd, but it did work-even with a Rochester quadrajunk
Just gotta be creative...
The cheap way out would be to do a blow through with a centrifugal...but I know you wanna use a roots type.
