FWIW if I were in your shoes and looking at weight savings only and not performance and all I was considering was changing the intake, I would just skip it. You won't be saving enough weight to make a difference and it's not worth the hassle unless you're just wanting to do it for the fun. My own goal was to make my 440 as light as a stock small block. Aluminum water pump, housing and intake, TTI headers, Sanden AC compressor, and some day I'll add eddy heads.
If you're dead set on doing it, Edelbrock Performer (non RPM) is about the "newest" design that's very similar to stock but from what I've read, it's just a mirror opposite of an older runner design (CH4B???). The older CH4B and Offy 360 will do the same.
I don't know how folks claim they can use the stock throttle and kickdown on an RPM without tweaking the cable and linkage north about an inch. I'm building mine now and it ain't happening with stock linkage. Andy's (ARE) bracket is awesome and the best solution I've seen.