Now, I know where you coming from in terms of rotor performance and all. But you’re a bit naive to think your going to get 400kw that easy – Coming from someone who has had friends from BIG power 13b’s in the past..
Factor in the price of machining for the “bigger” apex seals your going to need, price for the port machining, price for the dowel’s an machining and all the parts, then manifold, turbo, misc ect.
In realty it’s still going to cost you the better half $12k - $18k for a reliable drive in drive out package of 400rwkw.