I have a '91 Eclipse GS-T and was wondering if I could just get a manifold for my '86 RX-7 NA to put the stock 14B (TD05H Housing) onto it. Can anyone send me a link? Has it been done? I know that turbo is capable of 18 pounds of boost safely on the DSM, how about the RX-7?

 

If you can't get a custom manifold made then you could buy a TO4 manifold and make an adapter.