Question RE: APV and 2 extra injectors
 

Can anyone explain to me how/when the Auxiliary Port Valve is actuated, and if its actuation coincides with additional fuel from the 2 extra injectors?

I was told by a reputable rotary builder that having the port closed @ 5500 makes more torque. I'm wondering for a strictly race engine what people have found works best.

Thanks!

MazdaDAG