Okay so I want to try something different than the regular carb set up on my 12a but I cant find anything on what I want to do. One of my ideas are running dual side draft webers but my problem is I can't find anything on the intake manifold, My second idea is a weird one but I've seen people with older toyotas and hondas running street bike carbs and I thought about doing this on my rx7 because I would imagine street bike carbs would have very good throttle response, ease of tuning and parts etc. Basically what I want to know is has anyone done either of these and what manifold did you run if so and for the street bike carbs what carbs did you run

 

Back in the day Rotary Engineering had a DUAL 36mm DCD setup that many folks have used on their 12As and 13Bs. It really screams. They sometimes come up for sale if you keep and eye out for em.

Dual sidedrafts could be done with a custom manifold but theres not much room between the engine and the passenger side of the engine bay and its right above the headers so heat is an issue. Wrap arounds can be done as well but they introduce some differences in the throttle response and/or torque curve.