Here's the setup we had on the VH wagon at one stage.
My little bro fabricated a box out of metal that was just the right size to sit on top of the carby, there was a hole in the top so it could be screwed down tight using the same thread and bolt that the standard air cleaner uses.
Then there was a big hole for the pipe to come out of. We used some black corrigated flexible stuff (bout 3" in diameter), worked a treat. We didn't use a hose clamp for that end tho coz we used a different method which is really hard to explain, it was just something that was on the end of the pipe that made it really easy to hold it in.
Then lay the piping down to wherever u want it, then chuck ya pod on the end.
Simple.
We don't use it now tho coz my little bro has a EFI VK (PEAKN6), and I either want to use a chrome air filter, or the standard cold air induction setup....will decide wat I want when my motor is back 2gether.