I ordered the 2.85:1 drive, I was planning on street porting but Paul Lamar pointed me in the P-port direction. I was thinking of an Ivoprop 76" 3 blade to  with a good street port, I would like to get 200hp. I'm planing on using the lower intake manifold with 15" extentions & I haven't decide on slide throttle plate or?

Hi Georges,

You'll find that most folks on this list are not Paul Lamar followers.  He's got lots of great theories, but he's never built a single rotary engine to my knowledge.  If you want to truly experiment, that's great, but recognize that you WILL be blazing new trails, and likely suffering some consequences along the way.   If you want something that's known to work, then copy what's known to work. 

Folks with fast planes tend to have problems with drag from the IVO at high speeds (over 180 mph or so), but they climb great.  Sounds like it's probably a good choice for your application though.