4106 Air intake, What kind is this?

[Barn Owl]

What kind of air intake is on this 4106?

Link:

http://cgi.ebay.com/ebaymotors/GM-4106-BUS-CONVERSION-CUSTOM_W0QQitemZ130023014568QQihZ003QQcategoryZ50056QQrdZ1QQcmdZViewItem

[JimC]

That looks similar to the one on my 4106, mine is ducted up into the bulk head area above the engine, and I have a paper element in the center of that area. From the element, it has PVC pipe that goes to the outside corners to gather air.
JImC 4106
Wisconsin