Paul,
Although I've been on this list for 9-10 years, I've only been  following
superficially for the last few.  As I start on my new 20B  project, I'm
suddenly wondering about the most updated recommendations for  engine
modification for aircraft application.  I'm planning a P-Port N/A  20B and hoping for
300-350 HP at 7000 RPM max.   As of this moment,  I'm considering the
following engine mods (below).  Can you comment  and make any additional
recommendations?

1)  P-Port w/ your cool sealing plates w/ SS tubes, etc
2)  9.7:1 Rotors (89-95 NT)
3)  Race Exhaust Porting
4)  Underdrive Pulleys
5)  Tracy's RD-1C redrive w/ 2.85:1 gear ratio w/  Dodgeridge Adapter Plate
and Motor Mount
6)  IVOPROP Magnum Electric In-Flight Adjustable Prop w/ Constant  Speed
Electronic Governor
7)  Tracy's EC3 EFI & Ignition Controller
8)  Tracy's Overhaul Kit and Seals
9)  Dual Alternators (haven't figured out the mounting yet)
10) Slide Throttle (if I can figure out how to build it for the  20B)
11) I'd really like to figure out a way to run an A/C  compressor!!
12) I sure wish I could get my hands on a Mistral intake manifold  !!!!
13) Will need to modify the water pump!!!  Way too tall.

Thanks,
Don

Check with Mark in Austin. He is building a 3 rotor p-port
with slide throttle.

Paul Lamar