PT Air Intake Change

[Scott Forman]

Has anyone modified the engine air intake on the PT roof?

My bus collects leaves on the roof this time of year, and that means
that the forward-facing "ram air" style air intake on the roof ends up
clogged with leaves. Has anyone modified the intake with some sort of
different "mouth"? With the blower and a turbo, I can't imagine there
is any real benefit from any "ram air" effect. I thought of turning it
around so the intake faces the rear, but was concerned about whether
I'd encounter some sort of vaccuum that made it harder to suck air in.

Suggestions?

Scott Forman
86 PT38
Memphis