yeah, i know drawthrough makes it tough. I'm not in a hurry. I once had a Corvair turbo (designed for a side-draft Carter) in decent shape, but i gave it to someone. oopsie. that would have been about the right size.
yeah, the one off a 440 might be a *wee* bit big!
i will look at the requirements for pressurizing the Weber, as much as I'd rather not do that.