The obvious is the Weber 48IDA, but I mentioned that I had seen a dual carb set up. It turned out to be a dual Weber 36DCD set up with an inlet by Rotary Engineering.
We thought it might interest others -



http://www.rx7club.com/1st-generation-s ... bs-862625/
http://www.rx7club.com/naturally-aspira ... p-1083584/
And a couple of videos to see in action
https://www.youtube.com/watch?v=4PFTWOQRKXc
https://www.youtube.com/watch?v=lat-0p-aryI
