Check with Tom Langdon at the Stovebolt Engine Company.
www.stoveboltengineco.com I think he even sells the Holley and Webber 2bbl carbs that you would interested as well as several other little goodies. Other guys like Patrick's Antique Cars and Jim Carter's are good guys to look at when considering modifications to your intake. I also agree with Chip, in that, Clifford's make great stuff as well. I think they manufacture a lot of there own products. They seem to have a lot of experience with these engines and any will be glad to talk to you over the phone. Good luck and welcome to the Stovebolt!
