Hi I'm looking for info on 13b engines and a transmission that would hold 600+ hp. I've read that the series 5 rx-7 trans is a good unit. I'm from the U.S and I'm new to rotarys but I find them facinating! I've been researching rotarys and from what I've seen and read, its not hard to get 500 or even 600 horse from a 13b with clearancing the rotors, good apex seals, bridge porting, microtech fuel injection and a decent sized turbo. I know the 13b-re and 13b-rew motors are good with the exception of the re being rare, but I've heard an n/a rotary like a 13b-dei has 6 ports correct? I'm really just looking for tips, tricks and anything useful in building/rebuilding 13b engines. AlsoI'm looking into all possible options here. Any help or advice is appreciated