There is a guy in Europe building a Breezy I met at Aero in April. He is using Tracy's gear box and EFI. You should contact him. I'll dig up his name and email address. My friend Alex may have his biz card.
He is a horn player in a symphony orchestra. I think he is on the list but I'll try to find his address when I get back home to Cal. I am in Nebraska right at the moment.
I would use a p-port Renesis engine AKA RX8 with a 2.85:1 gear box. You would have about 250 HP for take off. We also have a young man in Ljubljana racing a Mazda P-port.
I'll be at Aero again next year if possible. Wife worked for UAL :) We have a rotor head meeting every year on Friday night.
More about this later.
Paul Lamar

Paul,

Thanks for your answer.

When you say a p-port Renesis engine with a 2.85:1 gear
box. Do you mean side intake ports and peripheral exhaust port? Or a
custom built engine with both intake and exhaust P-port?

In fact, would you please tell me wich engine 13B AP, 13B-RESI,
13B-DEI,13B-RE, 13B-REW or 13B-MSP Renesis? Turbo with HC rotors?
I am a bit lost...

Jacques

Wow we know them as Renesis 13B high power six ports.
I am not sure if that is the MSP. I'll have to look into that
when I get back in a couple of days. I call them the RX8 engine.
The four port version was discontinued a few years ago.
Mazda starting selling them in 2004.  No turbo versions
of the RX8 engine. For P-port mods it makes no difference.
Either will work.

We custom build the P-port rotor housings so it is side exhaust
and peripherals intake. Best of both worlds. Idles
well unlike a P and P or P squared :) It is also easy to do
your own once you read the instructions.

Read the web site on this subject.
http://www.rotaryeng.net/intake.html

There is also a Youtube video under PaulLamar2

Paul Lamar