I have noticed that the Brison engine is the only engine that still uses the intake port into the cylinder. All the other major brands have case induction. I raced motorcross for years and was when the Japs made the swap to case feed motors. IS this the same in the RC hobby???? Do it benifit these big RC models they way it did the Honda, yamaha bikes ect???? I am not really up to par on the RC stuff yet, and any help would be appriciated, Thanks Jeff