nytrdr24
+1y
sorry immortal, forgot to answer the first part of your q.
the carb still mounts on the stock intake on the passenger side of the truck, the little flat plate in the plastic wrapper mounts on top of the 32/36, or 38/38 weber (not sure on the 34/34), then the hat (ribbed piece) sits on top of the adapter plate, and can be turned in any direction that you want the oem air tube to go...
the oem black air tube is the one that came on the factory air filter housing (it did run to the driver's side of the radiator core support) along with the bracket that held the open end to the core support, and the K&N is on that end....
The way I was planning on routing it was put the filter over next to the factory battery tray/location and mount the bracket in there to hold that end steady.
The opening on the hat is sort of an elongated oval shape or a rectangle with rounded ends, and just happened to work nicely with the oem tube...