Can anyone help identify this Racing Beat intake manifold (since they don't put part numbers on their items)? I purchased it on eBay. It was advertised for a 79-85 12A but I have a 1985 rx7 with a 12A and it does not fit. It is too wide (basically hits the transmission bellhousing). I'm guessing it's for a 13B 4-port but I want to be certain before I sell it. And just for more proof, I ordered a gasket for a 1985 12A and the ports on the gasket did not line up with the ports on the manifold. Any help is much appreciated!

 

if it doesn't fit the 12a then it's for the 4 port 13b. the rotor housings are thicker on the 13b making the bolt holes and outer ports farther apart..

 

Makes sense. Thanks.