I don't care who's brother you are. Honda made a 1.5L engine with 900hp as a concept for F1/Cart/IRL. I wouldn't be ragging on 4 cyl. engines if you're looking for help, and especially not if that is what you race.
i rag on them all the time, 4cyl 6cyl or 8cyl. We all know Rotary > All, so i win this argument