Mmm...

could the owner be a Canadian pilot? Ivan anyone?

Steve makes it sound as though the plane was shipped from outside the US.

All said and done, of the two Circus Circus pictures posted, the one in the foreground has a very interesting setup. Inverted engine with S-shaped header with pipe running inside the glass fuse along the top! Although the Tipo's I'm building are the classic 720's and hence considerably smaller, it still baffles me (pun inteded) how one gets a tuned pipe installed in the upper part of a Tipo fuse without access to it from the top and of course without frying your radio gear as well as your fuel tank.

Maybe the internal design accounted for all this. It be interesting to see the guts of that plane. It's too bad there isn't better documentation on the Tipo series despite DH being willing and present.

David.