air box Mazda rotary IDA Weber, with latches and seal https://www.efihardware.com/products/1872/air-box-Mazda-rotary-IDA-Weber-or-EFI-Hardware-throttle-body-with-latches-and-seal
For Weber IDA carburettor and some IDA throttle bodies on rotary egine applications. Base is not drilled as orientation of manifolds, bores and bolt holes can differ.