Of course there is the other end of the spectrum where maybe you want a fumes motor but you want power too. So maybe what you start looking into is a variable orifice device that can let you do both. I talked about this idea in my lecture from last year (2015).
Anyhow. Here we are. This will let you figure out a throttle body size based on filling in some variables. So you can see how much power you can make at what RPM for the sizes given.